Surely. But there are other ways to serve other than "in uniform". You could go to work for one of the services as s civilian civil servant, some of those even deploy. You could go to work for one of their contractors. Those do direct support, and of course also supply the beans, bombs, and bullets required to prosecute the war. IOW, you could become a modern, high tech, version of Rosie the Riveter.
Anybody and everybody that works and pays taxes, which pay for the war, is in essence serving and contributing................