Yes, some joined the National Guard, if they could. It was, after all, a perfectly legal and honorable way to serve one's country and avoid being drafted and sent to serve in active combat. Unlike, for example, burning a draft card and fleeing to Canada, or filing a change of address ever time you were sent a draft notice and refusing to report for induction, or filed as conscientious objectors or got a doctor to falsify some medical record and make you 4-F, or bombing the Pentagon. And, yes, during the most active parts of the Vietnam War and the "draft", it took some pull to get an appointment to the National Guard, usually at the state level as I recall. It got so bad that eventually all deferments were cancelled, there was no National Guard option and a draft lottery was begun in 1970, and 1971 (the year of my lotto).
I believe I get your "dig" at George W. Bush. But let's not go there. Instead, why not just say "Thank you" to Richard Nixon for ending the military draft and eventually ending the war that Eisenhower, Kennedy, and especially Lyndon B. Johnson gave us? And also why not give a heart felt "Thank you!" to all who served in every branch of the military to defend our freedoms. Thank You!!!
PS: What does "Congress shall make no law" mean? At the time the 2nd Amendment was written, there was no distinction between the public's "arms" and the military's "arms". The law was written to protect citizens from the government. Too bad that playing field hasn't been kept level. Guess Prohibition and gangsters with automatic weapons sealed that door some years back. And in any case, who would now be safe from a strong armed and willing government, no matter how well-armed we might be? Not at Ruby Ridge. Not at Waco. Not anywhere.