True for those on partial mobilization. Not so much for contractors (granted, contract often serves as the only way to raise family from poverty, to which some men go; but still, there is a choice not to)
Although there are brave souls not going there even though they're forced to and deserting and surrendering and preferring jail or sometimes risking their lives even more than on war to escape. My heart goes to those heroes.
And over half the planet eventually agreed to join the Bretton Woods system, ushering in an unprecedented period of peace compared to what was essentially nonstop warfare