Lance Bunch has had an impressive year. In July 2017, he gained a coveted star, having been promoted to brigadier general while serving as the principal military assistant to James Mattis, the secretary of defense. His job put him at the epicenter of all US national security issues — and among the most pressing for Mattis at that moment was Afghanistan.
The prepresidential Donald Trump had repeatedly questioned the need for US forces to stay in the country. The military leadership felt otherwise, and once Trump was elected, they argued that he should send more troops and hang on for the…