After the 9/11 attacks, tens of thousands of young men and women joined the military, heading for the rugged mountains of Afghanistan and dusty deserts of Iraq. Many of them now are officers in the Army with multiple combat deployments under their belts. But as the wars wind down and Pentagon budgets shrink, a lot of them are being told they have to leave. It's painful and frustrating. In quiet conversations at Fort Bragg in North Carolina and Fort Eustis in Virginia, captains talk about their new worries after 15-month deployments in which they battled insurgents and saw roadside bombs...