According to wikipedia, when the war started, the Austro-Hungarian Army numbered around 3.35 million men.
big big big
It is best funded army in the world, with about 1.2 million enlisted.
japa n has no army.
8,500,000
4,300,000
750,000
1,200,000
400,000
1,400,000
100,000
650,000
10,000