I don't know, I served in my country's army so I have no issue saying that.
You don't have to be the famous astronaut to be an anonymous part of the space program and participate in doing something worthwhile like getting a man to the moon. I am having trouble understanding your all-or-nothing argument, and apparently your need for worldwide recognition for an action to have meaning.
In any case, I am sure you have done something in your life as worthwhile as the anonymous https://en.wikipedia.org/wiki/Roddie_Edmonds
Then I wish you good luck when you're drafted to fight a war, or decide on your own volition to go fight. But I couldn't ask you or anybody else to make that kind of sacrifice. As most soldiers in history died for nothing - and killed for nothing.
Every man who refused to go to war and has progeny living today did something more worthwhile than those young soldiers - many of them true heroes - who died in the mud or the snow without having any kids of their own.
But I'm not anti-military, rather the contrary. But it should be for those who want to fight from their own free will - like many of the most successful armies through history.