War is a genetic behaviour of every human civilization.
No Year of Invasion  of Invading forces  Defending forces
1 1789 Vietnam  Manchu army  Vietnam 
2 1792 Laos  Siam  Laos
3 1792 Poland  Russia  Poland
4 1793 Breda  France  Breda
5 1793 Kingdom of Sardinia  France   Sardinia
6 1794 Austrian Netherlands  France   Austria
7 1794 Holland  France   Dutch Republic
8 1795 Bavaria  France   Bavaria
9 1795 Ceylon   Great Britain   Batavian Republic
10 1795 France   Great Britain  France
11 1798 Malta  France  Sovereign Military Order of Malta Order of St. John of Jerusalem
12 1798 Egypt  France   Ottoman Empire
13 1798 Ireland  France   Ireland
14 1798 Vietnam  France  Vietnam
15  Ottoman Empire  France
16 1799 Ionian Islands   Russia
. France
.  Russia 
17 Anglo-Russian Holland (1799)   Great Britain  Holland
18 1800 Piedmont  France  Piedmont
19 1805 Bavaria   Austria   Bavaria
.  Spain 
20 1807 Portugal  France  Portugal
21 1808 Spain  France  Spain
22 1809 Martinique   United Kingdom  France
.  United Kingdom
23 1809 Portugal  France   Portugal
24 1809 Flanders   United Kingdom  France
25 1809 Sweden   Russia   Sweden
26 1810 Guadeloupe   United Kingdom  France
.  United Kingdom
27 1810 Portugal  France   Portugal
28 1810 Mauritius   United Kingdom  France
29 1811 Java   United Kingdom  France
.  Prussia 
.  Austria
30 1812 Russia  France  Russia
.  Portugal 
.  United Kingdom
31 1813 France  Spain France
32 French Revolutionary and Napoleonic Wars (1792–1815)
.     Tripoli
33 1805 Tripoli   United States  Ottoman Empire
.     Viceroyalty of the Río de la Plata
34 1806–1807 invasions of Spanish Río de la Plata basin colonies   United Kingdom  Spain
35 1808 Swedish Finland   Russia  Sweden Swedish Finland
36 1809 Sweden   Russia   Sweden
37 1812 Cambodia  Vietnam  Cambodia
. Native Americans
.      Lower Canada
.      Upper Canada
.      United Kingdom
38 1812 invasions of United States   British Empire  United States
.      Lower Canada
.      Upper Canada
39 1812 invasions of Canada   United States   British Empire
.      Upper Canada
40 1813 Canada   United States   British Empire
.      Lower Canada
.      Upper Canada
.      United Kingdom
41 1814 the United States   British Empire  United States
42 1812-16 invasions of the Banda Oriental  United Kingdom of Portugal, Brazil and the Algarves  Banda Oriental
43 1817-21 invasions of Assam  Burma  Assum
44 1825 Greece  Egypt   Greece
45 1827 Laos  Siam  Kingdom of Vientiane
.     Algiers
46 1830 Algeria  France  Ottoman Empire
. Cambodia
47 1831 Cambodia and southern Vietnam  Siam  Vietnam
48 1832 Champa  Vietnam  Champa
.     Syria
49 1832 Syria  Egypt  Ottoman Empire
.     Jammu
50 1834 Ladakh  Sikh Empire Ladakh
51 1835 Riograndense Republic   Brazil  Riograndese Republic
52 1837 Peru   Chile   Peru
53 1838 Peru   Chile   Peru
54 1839 China   United Kingdom  China
55 1841 Cambodia  Vietnam Siam
56 1841 Bolivia   Peru   Bolivia
57 1846 Mexico   United States   Mexico
58 Manifest Destiny the Western United States   United States  Native Americans
. Corrientes
. Entre Rios
.  Uruguay
59 1852 Argentina   Brazil  Argentina
. Wallachia
60 1853 Moldavia and Wallachia   Russia  Moldavia
.  France
61 1854 Russia   United Kingdom  Russia
62 1854–1855 invasions of Finland   United Kingdom  Grand Duchy of Finland
63 1855 Ottoman Turkey   Russia   Ottoman Empire
.  France
64 1856 China   United Kingdom China
65 1858 Vietnam   France  Vietnam
66 1859 Sardinia-Piedmont   Austria  Sardinia-Piedmont
.  France
67 1859 Lombardy-Venetia  Sardinia-Piedmont Lombardy-Venetia
68     West
69     Pacific coast
70     Lower Seaboard
71     Tennessee
72     Virginia
73 1861–1865 invasions of the Confederate States  United States   Confederate States
74 1862–1867 Mexico   France   Mexico
75     Kentucky
76     Maryland
77 1862 the United States  Confederate States   United States
78 1863 the United States   Confederate States   United States
.  Uruguay
.  Argentina
79 1864 Paraguay   Brazil  Paraguay
.  Chile
80 1864 Peruvian Chincha Islands  Spain   Peru
. Luang Phrabang
81 1865 Tonkin, Vietnam  Black Flag Army  Siam
82 1866 Korea   France   Korea
.  British India
83 1868 Abyssinia   United Kingdom  Abyssinia
84 1871 Korea   United States   Korea
85 1871 France  North German Confederation  France
. Bulgarian Legion
.  Montenegro
.  Romania
.  Serbia
86 1877 Ottoman Bulgaria   Russia Ottoman Bulgaria
87 1878 Ottoman Turkey   Russia   Ottoman Empire
88 1879 Bolivia   Chile   Bolivia
89 1879 Peru   Chile   Peru
.  China
90 1884 Chinese Tonkin   France  Vietnam
91 1893 Hawaii   United States   Hawaii
92 1894 Korea   Japan   Korea
93 1894 China   Japan   China
94 1895 Taiwan   Japan  Taiwan
95 1895 Ethiopia   Italy   Ethiopia
.      Cape Colony
96 1895 South African Republic   British Empire  South African Republic
97 1897 Crete   Greece   Ottoman Empire
98 1897 Greece   Ottoman Empire   Greece
99     Guam
100     Philippines
101     Cuba
102     Puerto Rico
103 1898 Spain  United States   Spain
104 1898 the Philippines   United States   Philippines
.      Cape Colony
.  Orange Free State     Natal
105 1899 British Africa   South African Republic  British Empire
.  Austria-Hungary 
.  Italy
.  Germany
.  France
.  United States
.  Japan
.  Russia
106 1900 China   United Kingdom  China
.      Canada
.      United Kingdom  Orange Free State
107 1900 the South African Republic and the Orange Free State   British Empire  South African Republic
108 1903 Bolivia   Brazil   Bolivia
109 1904 Tibet   United Kingdom   Tibet
110 1904 Russia   Japan   Russia
111 1910 Tibet   China   Tibet
112 1910 Korea   Japan   Korea
113 1911 Libya   Italy   Ottoman Empire
.  Montenegro
.  Greece
.  Serbia
114 1912 Macedonia   Bulgaria  Ottoman Empire
.  Ottoman Empire 
.  Montenegro
.  Greece
.  Romania
115 1913 Bulgaria   Serbia  Bulgaria
116 1915 Haiti   United States   Haiti
117 1914 Luxembourg   Germany   Luxembourg
118 1914 Belgium   Germany   Belgium
119 1914 Alsace   France   Germany
120  United Kingdom  Togoland
121 1914 Togoland   France
122 1914 South Africa   Germany   South Africa
123 1914 Serbia   Austria-Hungary   Serbia
124 1914 Germany   Russia   Germany
125 1914 Galicia   Russia   Austria-Hungary
.  Belgium 
.  France
126 1914 Kamerun   United Kingdom Kamerun
127 1914 Samoa   New Zealand  Samoa
128 1914 New Guinea   Australia  New Guinea
129  United Kingdom   Germany
130 1914 Tsingtao   Japan
131 1914 East Africa   United Kingdom  East Africa
132 1914 France   Germany   France
133     Mariana Islands
134     Caroline Islands
135     Marshall Islands  Japan   Germany
136 1914 German Pacific
137 1915 German South West Africa   South Africa  South-West Africa
138 1915 Serbia   Austria-Hungary   Serbia
139     Caucasus  United Kingdom
140     Mesopotamia  Russia   Ottoman Empire
141 1915 Ottoman Empire
.  Germany 
.  Bulgaria  Serbia
142 1915 Serbia   Austria-Hungary
143 1915 Montenegro   Austria-Hungary   Montenegro
.  Austria-Hungary 
144 1915 Russia   Germany  Russia
145 1916 Vietnam   France  Vietnam
146 1916 Mexico   United States   Mexico
147 1916 Austria-Hungary   Romania   Austria-Hungary
148 1916 Romania   Germany   Romania
149 1917 Hungary   United Kingdom   Austria-Hungary
. China 
.  Italy
.  Serbia
.  Romania
.  India
.  Australia
. France
.  United States
.  Poland
.  Greece
.  Czechoslovakia
.  Japan
.  Canada
150 1918 Russia   United Kingdom  Russian SFSR
151  Ukrainian SSR  Ukraine
152 1919 Ukraine   Russian SFSR
153 1919 Hungary   Romania   Hungary
154 1919 Ukraine   Romania   Ukraine
155 1919 Eastern Thrace and Western Anatolia   Greece  Turkey
.  Ukrainian SSR  Poland
156 1920 Poland   Russian SFSR
.  Belgium   Germany
157 1923 the Ruhr   France
158 1923 Corfu  Italy Italy   Greece
159 1932 Bolivia  Paraguay  Bolivia
160 1931 Manchuria  Japan  China
161 1935 Ethiopia  Italy Italy   Ethiopia
162 1937 China   Japan  China
.  Poland   Czechoslovakia
.  Hungary
163 1938 Czechoslovakia   Germany
164 1938 the Soviet Union   Japan   Soviet Union
165 1939 Albania  Italy Italy  Albania Albania
. Mongolia
.  Manchukuo   Soviet Union
166 1939 Mongolia   Japan
167 1939 Poland   Germany  Poland
168 1939 Poland   Soviet Union   Poland
169     Paracel Islands
170     Spratly Islands  Japan   France
171 1939 French colonies
172 1939 Estonia   Soviet Union   Estonia
173 1939 Latvia   Soviet Union   Latvia
174 1939 Lithuania   Soviet Union   Lithuania
175 1939 Finland   Soviet Union   Finland
176 1939 China   Japan  China
177 1940 the Channel Islands   Germany   United Kingdom
178 1940 the Netherlands   Germany   Netherlands
179 1940 Luxembourg   Germany   Luxembourg
.  Italy   France
180 1940 France   Germany
181 1940 Belgium   Germany   Belgium
182 1940 Norway   Germany   Norway
183 1940 Denmark   Germany   Denmark
184 1940 Faroe Islands   United Kingdom   Denmark
185 1940 Iceland   United Kingdom   Iceland
186 1940 Vietnam   Japan   France
187 1940 Somaliland   Italy  Somaliland
188 1940 Kenya   Italy   Kenya
189 1940 Sudan   Italy  Sudan
.  Albania   Greece
190 1940 Greece   Italy
.  Bulgaria 
.  Germany
191 1940 Egypt   Italy  Egypt
192  Netherlands   Portugal
193 1941 Portuguese Timor   Australia
194 1941 Vietnam   Japan  Vietnam
. Italy
195 1941 Italian-occupied Albania   Greece  Albania
196 1941 Greece   Germany   Greece
.  Hungary 
.  Bulgaria
.  Italy
197 1941 Yugoslavia   Germany  Yugoslavia
198 1941 Greenland   United States   Greenland
199 1941 Indochina   Japan  Vietnam
200 1941 Lebanon   United Kingdom  Lebanon
201 1941 Syria   United Kingdom  Syria
.  United Kingdom 
202 1941 Iran   Soviet Union  Iran
203 1941 Indochina   Thailand   France
204     Russia
205     Bessarabia
206     Ukraine
207     Baltic States
208     Belorussia
209     Occupied Poland Nazi Germany Germany   Soviet Union
210 1941 Soviet Union
211 1941 Thailand   Japan   Thailand
212 1941 Sarawak   Japan   Sarawak
213     Malaya
214     Hong Kong
215     Borneo  Japan   United Kingdom
216 1941 UK Pacific
217     Philippines
218     Wake Island
219     Guam  Japan   United States
220 1941 US Pacific
221 1941 East Indies   Japan   Netherlands
222     New Guinea
223     Singapore  Japan   United Kingdom
224 1942 UK Pacific
225 1942 Madagascar   United Kingdom   France
226 1942 Vichy France   Germany   France
227 1942 Alaska   Japan   United States
.  Australia 
228 1942 Solomon Islands   United States  Japan
.  United Kingdom 
229 1942 North Africa   United States  France
230     Marshall Islands
231     Gilbert Islands
232     Kolombangara  Japan   United States
233 1943 the Pacific
.  Canada 
234     Sicily  United States
235     Mainland  United Kingdom Italy
236 1943 Italy
237 1944 Hungary   Germany   Hungary
238 1944 Romania   Soviet Union   Romania
239 1944 East Asia   Japan  China
240     Marshall Islands
241     Philippines
242     Guam  United States   Japan
243 1944 the Pacific
244 1944 Albania   Soviet Union  Albania
245     Occupied Luxembourg
246     Occupied Netherlands
247     Occupied Belgium  Canada 
248     Occupied Ukraine  United Kingdom
249     Occupied France  Soviet Union
250     Western Germany  United States  Germany
251 1944 occupied Europe
252 1944 Yugoslavia   Soviet Union   Yugoslavia
253 1944 Bulgaria   Soviet Union   Bulgaria
254 1944 Azad Hind   United Kingdom  Azad Hind
. Kingdom of Italy Italy 
.  United Kingdom
255 1945 Italy   United States Italy
256 1945 Slovakia   Soviet Union  Slovakia
257 1945 Croatia   Soviet Union  Croatia
258     Austria
259     Poland
260     Ostland
261     General Government Poland 
262     German mainland  Soviet Union  Germany
263 1945 occupied Europe
. 1945 occupied Europe
264     Burma Mongolia 
265     Iwo Jima  United Kingdom
266     Formosa Vietnam
267     Okinawa  Soviet Union
268     Manchuria  United States  Japan
269 1945 Indonesia   Netherlands  Indonesia
270 1945 Vietnam   France  Vietnam
271 1946 Vietnam   France  Vietnam
272 1947 Jammu and Kashmir   Pakistan   India
. Syria 
.  Iraq
.  Jordan
273 1948 Israel   Egypt  Israel
274 1948 Palestine   Israel   Palestine
275 1948 Indian reconquista of Hyderabad   India   Hyderabad State
276 1950 Tibet   China   Tibet
277 1950 South Korea   North Korea   South Korea
278  South Korea   North Korea
279 1950 North Korea   United States
280  North Korea   South Korea
281 1951 South Korea   China
282  South Korea   North Korea
283 1951 North Korea   United States
284 1954 Indian reconquista of Dadra and Nagar Haveli   India   Portugal
.  Israel 
.  United Kingdom
285 1956 Egypt   France  Egypt
286 1956 Hungary   Soviet Union  Hungary
. France
. Spanish Sahara
287 1957 Spanish Sahara   Morocco  Spain Spain
288 1958 Laos   North Vietnam  Laos Laos
289 1961 Cuba   United States   Cuba
290 1961 reconquista of Indian Goa   India   Portugal
291 1961 New Guinea   Indonesia   Netherlands
292 1962 Aksai Chin and Arunachal Pradesh   China   India
293 1965 Dominican Republic   United States   Dominican Republic
294 1965 Jammu and Kashmir   Pakistan   India
295 1965 Lahore   India   Pakistan
296 1967 Jordan   Israel   Jordan
297 1967 Syria   Israel   Syria
298 1967 Egypt   Israel   Egypt
299 1967 invasions of Biafra   Biafra   Nigeria
300 1967 invasions of Biafra   Nigeria   Biafra
.  Sikkim
301 1967 Kingdom of Sikkim Nathu La and Cho La clashes   China   India
302 1968 South Vietnam   North Vietnam   South Vietnam
. Poland  Czechoslovakia
. Hungary
. Bulgaria
303 1968 Czechoslovakia  Soviet Union
304 1970 Cambodia   North Vietnam  Cambodia Khmer Republic
305  South Vietnam   North Vietnam
306 1970 Cambodia  United States
307 1971 East Pakistan   India   Pakistan
.  United States 
308 1971 Laos  South Vietnam  North Vietnam
309 1972 South Vietnam   North Vietnam   South Vietnam
.  Syria 
310 1973 Israel   Egypt  Israel
311 1974 Paracel Islands   China   South Vietnam
312 1974 Cyprus   Turkey   Cyprus
313 1975 South Vietnam   North Vietnam   South Vietnam
314 1975 Thổ Chu Islands  Cambodia   Vietnam
315 1975 Koh Poulo Wai   Vietnam  Cambodia
316 1975 Spanish Sahara   Morocco   Spain
317 1975 East Timor   Indonesia   East Timor
318 1976 Paracel Islands   China   Vietnam
319 1976 Lebanon   Syria   Lebanon
320 1977 Ethiopia   Somalia   Ethiopia
321 1978 Lebanon   Israel   PLO
322 1978 Tanzania   Uganda   Tanzania
323 1978 Cambodia   Vietnam  Cambodia
324 1979 Uganda   Tanzania   Uganda
325 1979 Vietnam   China   Vietnam
326 1979 Thailand   Vietnam   Thailand
327 1979 Afghanistan   Soviet Union   Afghanistan
328 1980 Iran  Iraq   Iran
329 1982 Falklands   Argentina   United Kingdom
330 1982 Lebanon   Israel   PLO  Syria
331 1982 Iraq   Iran   Iraq
332 1983 Grenada   United States   Grenada
333 1984 Reconquista of Siachen   India   Pakistan
334 1988 Spratly Islands   China   Vietnam
335 1989 Panama   United States   Panama
336 1990 Rwanda  Rwandan Patriotic Front   Rwanda
337 1990 Kuwait  Iraq   Kuwait
338 1991 Saudi Arabia  Iraq   Saudi Arabia
.  Syria 
.  Egypt
.  Saudi Arabia
.  United Kingdom
339 1991 Iraq   United States Iraq
340 1994 Haiti   United States   Haiti
341 1994 Chechnya   Russia   Chechen Republic of Ichkeria
342 1998 Ethiopia   Eritrea   Ethiopia
.  Burundi 
.  Rwanda
343 1998 Democratic Republic of Congo   Uganda  Democratic Republic of the Congo
344 1999 Kargil   Pakistan   India
345 1999 Chechnya   Russia   Chechen Republic of Ichkeria
.  United Kingdom  Taliban (Afghanistan)
346 2001 Afghanistan   United States
347 2002 West Bank   Israel  West Bank
.  Poland 
.  Australia
.  United Kingdom
348 2003 Iraq   United States Iraq
349 2004 Gaza   Israel  Gaza Strip
350 2006 Lebanon   Israel   Lebanon
351 2006 Somalia   Ethiopia   Somalia
352 2008 Anjouan   Comoros   Anjouan
353 2008 Georgia   Russia   Georgia
354 2008 Gaza   Israel  Gaza Strip
355 2014 Ukraine   Russia   Ukraine
356 2014 Gaza   Israel  Gaza Strip
.  Syria
.  Islamic State
357 2016 Syria   Turkey   Rojava
.  Ghana 
.  Nigeria
358 2017 Gambia   Senegal  GAM
359 2018 Socotra   United Arab Emirates   Yemen