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Yes, in WWII. They signed the Anti-Comintern pact in 1936 and the tripartite pact in 1940, to join the "Axis Rome-Berlin" from 1936 (ratified 1939 as the "Pact of steel"). Italy left the Axis pact in 1943. Soviet was also with the Axis 1939-41.
The Japanese was focussed on their own war theatre, continuing the Asian expansion with war on China 1937, thus not connected to the European conflict. The pact didn't place any obligations to assist directly in each others' wars.
First after the attack on USA in 1941, United Kingdom declared war on Japan, and Germany and Italy against USA. Then China also joined the Allies in 1941. Thereafter Japan invaded British held territories and also drove away the US troops from some places in Asia. The colonial territories of France were collaborating with Japan due to the Axis-friendly Vichy-France government.
However Stalin declared war on Japan first in 1945, when everything was finishing, as they had a non-aggression pact signed in 1941. Hitler tried to persuade Japan to declare war on Soviet, but they preferred to focus on other conflicts, and attack Siberia only if Hitler would be successful.
The Japanese and Germans didn't fight together, but had other collaboration: trade of resources and advanced military equipment, sharing military technology and intelligence. making official visits to inspect military installations and to learn or teach with specialists. Making synchronised plans to keep enemy countries busy and weakened. Until operation Barbarossa the Germans and Japanese sent resources and large equipment (even aircraft) on the Trans-Siberian railway, after that, most had to be sent by submarines.
In WWI, however, Japan joined the Entente with France, UK and Russia against "the triple alliance" of Germany, Italy and Austria-Hungary (expanded to he "Central powers").
What else can I help you with?
How did Germany lose Russia as an ally during World War I how did this affect the German war plans?
Russia was not an ally of Germany in World War 1.
Was turkey an ally in word war 2?
ya they were, they were fighting in world war 2 but not 1
What is the name of turkey major ally in World War 1?
Germany, Austro-Hungary, and Bulgaria.
Who defeated russia in World War 1?
Japan in the Russo-Japenese war.
Which countries fought against Germany in World War 1 but on Germany's side in World War 2?
Japan and Italy fought against Germany in World War 1 but were on Germany's side in World War 2
Who were all the ally countries in World War 1?
Britain, France, Japan and Belgium.
What role did America and Japan play in world war 2?
1 was an ally and the other was an axis
Did World War 1 include Japan fighting as a British ally?
No it was just Great Britain(British) vs. The Germans
How did Germany lose Russia as an ally during World War I how did this affect the German war plans?
Russia was not an ally of Germany in World War 1.
Was Romania an ally during world war 1?
In the WW1 Romania was an ally of Western countries.
Who did US ally with in World War 1?
Easy, Antarctica and Australia.
Was russo-japanese war apart of World War 1?
No. WW1 came in 1914. The Russo-Japanese War "almost" or "could have" became WWI...as Germany & France wanted to side with Russia against Japan; only Britain's "pact" with Japan prevented it. Had Germany/France entered the war against Japan, Britain would have entered the war as Japan's ally...WWI!
Was turkey an ally in word war 2?
ya they were, they were fighting in world war 2 but not 1
What are the release dates for Ally McBeal - 1997 Boy to the World 1-10?
Ally McBeal - 1997 Boy to the World 1-10 was released on: USA: 1 December 1997 Japan: 4 February 1999
Which former ally did Italy attack during World War 1?
Austria
What year did the us join the ally side in world war 1?
1914
Who was on the US side in World War 1 but not in World War 2?
japan
