During these early years soldiers were frequently involved in combat operations and had little time to engage in drug use or any other social activities. In the earlier years of the war alcohol was the main substance in which soldiers used indulged themselves. During these years alcohol consumption was actually encouraged by the military during off-duty hours. It was not until the end of the 1960s, when combat action slowed, that the use of illegal drugs became a serious problem in the military. Although the soldiers were relieved of the constant trauma of combat, these young men could be spending months on guard duty, in a bunker, or off performing other military tasks which were rather boring to the soldiers. The lack of combat and what were seen as useless duties left these unmotivated soldiers with too much free time on their hands. These circumstances along with anti-war protests back at home created adverse conditions for the soldiers, leading many to find relief in illegal drugs such as marijuana. As news of widespread marijuana use in Vietnam increased, the military began an aggressive offensive against its use. This campaign was greatly aided by the distinct odor of marijuana smoke, making it hard to conceal. In 1969, at this campaign’s height, 1,000 soldiers were being placed under arrest weekly for possession of