I have tremendous regard for Gen. Stanley McChrystal and the outstanding service he has rendered to our nation. I met with Gen. McChrystal in Iraq, where he was joint special-operations commander carrying out the most daring and vital missions. He is a warrior and a patriot. Yet his remarks in Rolling Stone were clearly inappropriate and wrong. I understand and support President Obama's decision to accept his resignation as commander of US and NATO forces in Afghanistan. I also, of course, strongly support the president's decision to have Gen. David Petraeus succeed McChrystal. Petraeus is a true American hero, who...