Insurgent attacks killed five more American troops west of the Iraqi capital, the military said Friday, making December the second deadliest month for U.S. servicemen in 2006. So far this month, 76 American troops have died in Iraq , the same number that were killed in all of April. With nine days remaining in December, the monthly total of U.S. deaths could meet or exceed the death toll of 105 in October, the Associated Press reported.