Looks like the “commanders in the field” didn’t do their homework:
A series of secret U.S. war games in 1999 showed that an invasion and post-war administration of Iraq would require 400,000 troops, nearly three times the number there now.
And even then, the games showed, the country still had a chance of dissolving into chaos.
And yet, in the battle to save western civilization from the Islamofacists, we only send 150,000 troops. Go figure.