Yes
Romania was an ally of Germany.Romania was an ally of Germany.
The Austro/Hungarian Empire was Germany's ally in WW1
In the WW2 Romania was an ally of Germany between 22.06.1941 and 23.08.1944.
Austria-Hungary was not a particularly useful ally from Germany's point of view.
Germany
Yes
Germany
Japan
Axis
Germany's ally had spotted the enemy.
Japan is gaining very little after WW I China in civil war, encourages Japan to invade Left League of Nations Ally with Germany Invade China (not part of WW2) And then declaring war on the world with Germany and Italy
The People's Republic of China is no longer an ally to North Korea. The alliance ended soon after the conclusion of the Korean War.