If it were mandatory, this would be a total police state. Look at the Iraq war, Bush used 9/11 to justify it, and sent soldiers to their deaths in Iraq, killing plenty of innocent people on the side. If government could now FORCE soldiers to a war they don't support, then the country wouldn't be America anymore.
NO! We children of the sixties fought for _years_ to end that compulsory military service for you all. We fought and some of us died for that cause. Even those of us who did our military duty fought against the draft and against the unconstitutional war-for-profit that made the draft so necessary. NO, Military service must not be made mandatory. People who are forced to fight are not fit to fight.
And nobody seems to care that both Bush and Obama are breaking US law by sending National Guard troops overseas . By law they are not permitted to engage in any military actions outside of our borders .
-1. National Guard troops have been "federalized" during conflicts since the NG was created; that's part of the reason they exist.
I looked this up .ehow.com/facts_4882119_what-duties-national-guard.html According to the article the National Guard cannot be Federalized unless the country is invaded . There is a difference between the National Guard and the Army Guard and Reserve units . If memory serves me right the last time we were invaded was Pearl Harbor .
Read this Wikipedia article. Look specifically at the "Presidential Reserve Call Up" section. There's no requirement for invasion; the President can call up the NG any time he wants, the only catch is that they can't be deployed for more than 270 days.
Ehow.com is not a reliable authority on anything. If you're looking for an authoritative source, this PDF from the Army (found in the Wikipedia citations) probably has more info.