Fought over a period of 10 days in 1969, the Battle of Hamburger Hill was the last major US ground assault of the Vietnam War. Attacks on the heavily fortified hill were primarily carried out by infantry using small arms fire, with fighting akin to WWI trench warfare. The site was of little strategic value, and the high number of casualties that resulted from capturing it sparked controversy and led to dramatic changes in US strategy. How did the hill get its name? Discuss