Gen. Stanley McChrystal's military career will soon officially be over: On Monday, the general told the Army that he’ll be hanging up his hat. The announcement comes a few days after President Obama relieved him of the leadership of the Afghanistan war effort over disrespectful remarks that appeared in a Rolling Stone article. Army spokesman Col. Tom Collins has said that while McChrystal has informed the Army of his intent to leave, he hasn't yet filed the official paperwork. It may be a few months before he officially leaves the service. Just last year, McChrystal was promoted to the prestigious rank of four-star general, a title he may not be able to keep, as Army rules stipulate a four-star general must serve with that rank for three years in order to retain it.