In 2001, he signed a six-year reenlistment package. 2001 + 6 = 2007.
On
17 September 2004, Walz accepted a conditional promotion to CSM based on his agreement to serve at least two additional years upon completion of the Sergeants Major Academy, which he was slated to complete in 2005/2006 time frame. 2005 + 2 = 2007.
In early 2005, his unit received the WARNO that they were going to be mobilized for Iraq.
In March of 2005,
he referenced this WARNO in his campaign literature, claiming that it was possible he would be going to Iraq, but, that he was "
dedicated to serving his country, whether in Washington DC or Iraq", a
nd making sure to highlight that he would be leaving his wife and (then) four year old daughter to serve overseas.
Then, on May 16th, 2005, he dropped, accepting demotion in order to retire early and before his unit was officially mobilized.
From the first cite, above, per two other Sergeants' Major from the Guard:
...On May 16th, 2005 he quit, leaving the 1-125th Field Artillery Battalion and its Soldiers hanging; without its senior Non-Commissioned Officer, as the battalion prepared for war. His excuse to other leaders was that he needed to retire in order to run for congress. Which is false, according to a Department of Defense Directive, he could have run and requested permission from the Secretary of Defense before entering active duty; as many reservists have. If he had retired normally and respectfully, you would think he would have ensured his retirement documents were correctly filled out and signed, and that he would have ensured he was reduced to Master Sergeant for dropping out of the academy. Instead he waited for the paperwork to catch up to him. His official retirement document states, SOLDIER NOT AVAILABLE FOR SIGNATURE.
On September 10th, 2005 conditionally promoted Command Sergeant Major Walz was reduced to Master Sergeant. It took a while for the system to catch up to him as it was uncharted territory, literally no one quits in the position he was in, or drops out of the academy. Except him.
Other congresscritters have served in the Reserves. He himself claimed in his campaign literature in March of 2005 that he would continue to serve. But... he decided he didn't want to.
Again, I'm not standing on a High Horse Screaming HOW DARE HE, or any of that business. This isn't a Stolen Valor issue (though I think it's clear he's been dishonest at times, through omission, comission, and deliberate vagueness). But reality does matter.