WW2

Countries Involved
Germany (1st September 1939)
Poland (1st September 1939)
Austria (1st September 1939)
United Kingdom (3rd September 1939)
Australia (3rd September 1939)
New Zealand (3rd September 1939)
India (3rd September 1939)
France (3rd September 1939)
South Africa (6th September 1939)
Canada (10th September 1939)
Russia (17th September 1939)
Japan (19th September 1939)
China (19th September 1939)
Mongolia (19th September 1939)
Estonia (26th September 1939)
Latvia (28th September 1939)
Belgium (3rd October 1939)
Lithuania (7th October 1939)
Finland (29th November 1939)
Norway (5th February 1940)
Denmark (9th April 1940)
Iceland (10th May 1940)
The Netherlands (10th May 1940)
Luxembourg (10th May 1940
Italy (10th June 1940)
Romania (28th June 1940)
Czechoslovakia (21st July 1940)
Egypt (9th September 1940)
Libya (9th September 1940)
Greece (28th October 1940)
Hungary (20th November 1940)
Slovakia (24th November 1940)
Albania (28th December 1940)
Malta (16th January 1941)
Kenya (16th January 1941)
Sudan (16th January 1941)
Thailand (17th January 1941)
Slovenia (27th March 1941)
Greenland (10th April 1941)
USA (10th April 1941)
Iraq (28th May 1941)
Syria (8th June 1941)
Serbia (13th July 1941)
Montenegro (13th July 1941)
Vietnam (28th July 1941)
Iran (25th August 1941)
Ukraine (10th September 1941)
The Philippines (12th December 1941)
The Solomon Islands (25th January 1942)
Singapore (31st January 1942)
Burma (20th February 1942)
New Guinea (8th March 1942)
Mexico (1st May 1942)
Brazil (22nd August 1942)
Algeria (8th November 1942)
Morocco (8th November 1942)
Ecuador (1st February 1945)
Paraguay (8th February 1945)
Argentina (28th March 1945)

Countries Invaded
Austria (12th March 1939-13th March 1939) (by Germany)
Poland (1st September 1939-16th September 1939) (by Germany)
Germany (7th September 1939-16th September 1939)  (by France)
Poland (17th September 1939-19th September 1939) (by Russia)
Estonia (19th September 1939-26th September 1939) (by Russia)
Latvia (28th September 1939-2nd October 1939) (by Russia)
Lithuania (7th October 1939-10th October 1939) (by Russia)
Finland (30th November 1939-17th January 1940) (by Russia)
Finland (15th February 1940-12th March 1940) (by Russia)
Norway (16th February 1940-9th April 1940) (by Germany)
Denmark (9th April 1940) (by Germany)
Denmark (12th April 1940-10th May 1940) (by Great Britain)
Norway (13th April 1940-1st May 1940) (by Great Britain and France)
Iceland (10th May 1940-19th May 1940) (by Great Britain)
France (10th May 1940-25th June 1940) (by Germany and Italy)
Luxembourg (10th May 1940-11th May 1940) (by Germany)
The Netherlands (10th May 1940-14th May 1940) (by Germany)
Belgium (10th May 1940-16th May 1940 (by Germany)
Romania (28th June 1940-6th September 1940) (by Russia)
The Channel Islands (30th June 1940-2nd July 1940) (by Germany)
Czechoslovakia (21st July 1940) (by Germany)
Egypt (9th September 1940-16th September 1940) (by Italy and Libya)
Romania (7th October 1940-12th November 1940) (by Germany)
Greece (28th October 1940-2nd November 1940) (by Italy)
Albania (28th December 1940) (by Greece)
Kenya (16th January 1941) (by Italy)
Sudan (16th January 1941) (by Italy)
Sudan (19th January 1941-31st January 1941) (by India)
Kenya (24th January 1941-24th March 1941 (by Great Britain)
Libya (4th March 1941-18th November 1941) (by Great Britain)
Egypt (24th March 1941-4th April 1941) (by Germany)
Slovenia (27th March 1941-17th April 1941) (by Germany)
Greece (6th April-8th April 1941) (by Germany, Italy and Hungary)
Greenland (10th April 1941) (by USA)
Iraq (28th May 1941-31st May 1941) (by Great Britain)
Syria (8th June 1941-12th July 1941) (by Great Britain, Australia and India)
France (13th June 1941) (by Australia)
Russia (22nd June 1941-5th December 1941) (by Germany and Finland)
Vietnam (28th July 1941-1st August 1941) (by Japan)
Iran (25th August 1941-16th September 1941) (by Great Britain and Russia)
Estonia (28th August 1941-5th September 1941) (by Germany)
Ukraine (10th September 1941-19th September 1941) (by Germany)
Egypt (21st October 1941) (by New Zealand)
Thailand (7th December 1941) (by Great Britain)
The Philippines (12th December 1941-13th December 1941) (by Japan)
The Philippines (24th December 1941- 2nd January 1942) (by USA)
Norway (27th December 1941) (by Great Britain)
Solomon Islands (25th January 1942) (by Japan)
Singapore (31st January 1942 - 15th February 1942) (by Japan)
Burma (20th February 1942- 28th February 1942) (by Japan)
Ukraine (1st March 1942- 18th May 1942) (by Russia)
Australia (8th March 1942-17th August 1942) (by Japan)
New Guinea (8th March 1942-3rd April 1942) (by Japan)
Madagascar (28th April 1942-7th May 1942) (by Great Britain)
Russia (26th June 1942-2nd February 1943) (by Germany)
France (16th August 1942) (by USA)
New Guinea (17th August 1942-5th September 1942) (by USA)
The Channel Islands (4th October 1942) (by Great Britain)
Algeria (8th November 1942-10th November 1942) (by Great Britain and USA)
Morocco (8th November 1942-
New Guinea (17th November 1942-15th December 1942) (by Japan)
Japan (21st November 1942) (by USA)
Tunisia (29th November-2nd December 1942) (by Germany)
Italy (4th December 1942-13th October 1943) (by USA)
Netherlands (6th December 1942) (by Great Britain)
Libya (15th January 1943-23rd January 1943) (by Great Britain)
Solomon Islands (21st February 1943) (by USA)
Burma (2nd March 1943) (by USA and Australia)
Russia (11th March 1943-1st August 1944) (by Germany)
Bulgaria (4th September 1943) (by Russia)
Ukraine (6th December 1943-4th January 1944) (by Russia)
India (7th March 1944-22nd August 1944) (by Japan)
Romania (4th April 1944-25th October 1944) (by Russia)
France (6th June 1944-14th August 1944) (by Great Britain, USA and Canada)
The Philippines (1st August 1944-15th November 1944) (by USA)
Belgium (2nd September 1944-9th September 1944) (by Great Britain, USA and Canada)
The Netherlands (5th September 1944-5th November 1944) (by USA and Canada)
Luxembourg (5th September 1944-10th September 1944) (by USA)
Poland (24th September 1944-27th January 1945) (by Russia)
Slovenia (5th October 1944) (by Russia)
Czechoslovakia (6th October 1944) (by Russia)
Greece (12th October 1944) (by USA)
Hungary (15th October 1944) (by Russia)
Norway (12th November 1944) (by Great Britain, USA and Canada)
Germany (2nd January 1945-26th June 1945) (by Great Britain, USA, Canada, Russia and Italy)
Denmark (20th June 1945) (by Great Britain, USA and Canada)
Japan (9th August 1945) (by USA)

Countries Occupied by Germany
Austria (13th March 1938-26th June 1945)
Poland (16th September 1939-27th January 1945)
Norway (9th April 1940-12th November 1944)
Denmark (9th April 1940-20th June 1945)
Luxembourg (11th May 1940-10th September 1944)
The Netherlands (14th May 1940-5th November 1944)
Belgium (16th May 1940-9th September 1944)
France (25th June 1940-14th August 1944)
The Channel Islands (2nd July 1940-4th August 1942)
Czechoslovakia (21st July 1940-6th October 1944)
Romania (12th November 1940-25th October 1944)
Egypt (4th April 1941-26th June 1945
Greece (8th April 1941-12th October 1944)
Slovenia (17th April 1941-5th October 1944)
Estonia (5th September 1941-26th June 1945)
Ukraine (19th September 1941-4th January 1944)

Countries Occupied by Russia
Poland (19th September 1939-)
Estonia (26th September 1939-5th September 1941)
Latvia (2nd October 1939-)
Lithuania (10th October 1939-)
Romania (6th September 1940-12th November 1940)
Iran (16th September 1941-9th September 1943)
Ukraine (4th January 1944-)
Romania (4th April 1944-)

Countries Occupied by Great Britain
Iceland (19th May 1940-26th June 1945)
Iraq (31st May 1941-16th January 1943)
Syria (12th July 1941-26th June 1956)
Iran (16th September 1941-9th September 1943)
Libya (23rd January 1943-26th June 1945)

Countries Occupied by Italy
France (25th June 1940-14th August 1944)
Greece (2nd November 1940-6th January 1941)
Kenya (16th January 1941-13th August 1943)
Sudan (16th January 1941-31st January 1941)
Greece (8th April 1941-13th August 1943)

Countries Occupied by Hungary
Greece (8th April 1941-12th October 1944)

Countries Occupied by USA
Greenland (10th April 1941-20th June 1945)

Countries Occupied by India
Syria (12th July 1941-26th June 1945)

Countries Occupied by Australia
Syria (12th July 1941-26th June 1945)

Countries Occupied by Japan
Vietnam (1st August 1941-9th August 1945)
The Philippines (13th December 1941-15th November 1944)
Solomon Islands (25th January 1942-21st February 1943)
Singapore (15th February 1942-9th August 1945)
Burma (28th February 1942-9th August 1945)
New Guinea (3rd April 1942-5th September 1942)