To delight in war is a merit in the soldier, a dangerous quality in the captain, and a positive crime in the statesman. -- George Santayana I'd heard of U.S. Marine Gen. Jim Mattis from other Marines over the years and from news coverage of his own exploits. He was the blunt, bachelor general who had served nine tours of duty in the Middle East, including combat in Afghanistan and Iraq. He was the commander of the 1st Marine Division in the longest, fastest thrust of a division in Corps history -- that dash to Baghdad in 2003. I knew...