Oct 19 (Reuters) - A U.S. soldier was killed on Wednesday when his patrol was attacked with small-arms fire south of Baghdad, the U.S. military reported. Following are the latest figures for military deaths in Iraq since the U.S.-led invasion in March 2003: U.S.-LED COALITION FORCES: United States 2,783 Britain 119 Other nations 118 IRAQIS: Military Between 4,900 and 6,375# Civilians Between 43,937 and 48,783* # = Think-tank estimates for military under Saddam Hussein killed during the 2003 war. No reliable official figures have been issued since new security forces were set up in late 2003. * = From www.iraqbodycount.net, run by academics and peace activists, based on reports from at least two media sources. The IBC says on its Web site the figure underestimates the true number of casualties.