GWB went into the national guard during the Vietnam War to avoid the draft (you could get an exemption by being in college, which also happened during the war for bush, being in the national guard, or being rich... Bush had all three).
Bush didn't have a plan to pull out of Iraq, cause he wanted to continuously occupy it for his friends at Haliburton. Then when it turns out that the middle east has incredibly persistent fighters, which no one had ever discovered before, he got trapped in there and had no idea how to end it.
Not to mention that he started a civil war and everyone was like "Oh fuck, which ones are we supposed to kill now?" Answer: https://www.army.mil/e2/c/-images/2007/02/28/2995/size0-army.mil-2007-03-01-150258.jpg