https://www.moonofalabama.org/2020/01/how-trump-rebelled-against-the-generals.html
Trump erupted to revive another frequent complaint: the war in Afghanistan, which was now America’s longest war. He demanded an explanation for why the United States hadn’t won in Afghanistan yet, now 16 years after the nation began fighting there in the wake of the 9/11 terrorist attacks. Trump unleashed his disdain, calling Afghanistan a “loser war.” That phrase hung in the air and disgusted not only the military leaders at the table but also the men and women in uniform sitting along the back wall behind their principals. They all were sworn to obey their commander in chief’s commands, and here he was calling the war they had been fighting a loser war.
“You’re all losers,” Trump said. “You don’t know how to win anymore.”