Why No Ground Troops in Syria?

New York Times: “In a private session at the White House, Mr. Obama explained that his refusal to redeploy large numbers of troops to the region was rooted in the grim assumption that the casualties and costs would rival the worst of the Iraq war. In such a scenario, he said, a renewed commitment could take up to $10 billion a month and leave as many as 500 troops wounded every month in addition to those killed, a toll he deemed not commensurate to the threat.”