The British Army suffered enormous losses during the two Afghan wars of the 1800's. In one 1842 battle, thousands of British troops and civilians were massacred during a long retreat from Kabul. There was a lone survivor, Dr. William Brydon, who reached Jalalabad on horseback wounded but alive.
At least 870 U.S. soldiers have lost their lives in Afghanistan since the war began eight years ago. There have been about 10,000 Afghan civilians killed from Afghan insurgent attacks and foreign military action.
The Soviet-Afghan war lasted nine years (1979-1988), one year short of the ongoing U.S.-Afghan war.
The Soviet army lost as many as 15,000 soldiers during the Soviet-Afghan War. Many were killed in combat, but an enormous number died as a result of disease and harsh conditions they faced. Source: Encyclopedia of Conflicts Since World War II
Over 1 million Afghans were killed in the war with the Soviets. Source: Encyclopedia of Conflicts Since World War II