Exactly WW2 had ZERO teamwork with these exceptions:
UK and USA in Europe
Germany tells Italy what to do because they pay their bills.
The Soviets didn’t trust anybody
The British didn’t trust the Soviets
Italy just wanted the trains to run on time, and the have a large lake known as the Mediterranean.
Spain wanted to be on the winning side after it won
USA just wanted to keep Democracy alive after 1945
Japan wanted its own dominion in the pacific
Germany wanted a free hand in Europe
Finland, Romania, Bulgaria, Hungry all wanted parts of western Russia for farming and lucrative contracts from the Reich.
This forgets the greatest (not most powerful) allience in world war 2. Was between AUS and the US. We were scared stiff of been invaided by Japan, the UK had sent most of or forces to africa and the rest to Singapor, along with all the navy to the Med and left us for dead after Pearl Harbour after we gave them everything.
MacCather came along, and with it tons of US forces and planes and gave real leadership to us. The US were not afraid of giving Aus all we needed because we were not a compeating power, and in return we put all our forces under US command.
We won Coral Sea, held liberate to Phillipans and ended up capturing Bereno.
And to this day we are still one of your greatest allies.