They wake before dawn, with time to exercise, eat and pray before the day’s first class in firing Kalashnikov rifles. Over the next eight hours, they practice using bazookas or laying roadside bombs, with a break for lunch and mandatory religious instruction. There is free time in the evening to watch television or play Ping-Pong. Lights out at 11 p.m. Such is a typical day at a dusty military base outside Tehran, where for the past several years members of the Iranian Revolutionary Guard Quds Force and Lebanese Hezbollah operatives have trained Iraqi Shiites to launch attacks against American forces in Iraq, according to accounts given to American interrogators by captured Iraqi fighters.