Forward Operating Base (FOB) Tillman was a U.S. military base located in Afghanistan, near the border with Pakistan. It was named in honor of U.S. Army Ranger Pat Tillman, who was killed in Afghanistan in 2004. Pat Tillman had left a professional football career with the Arizona Cardinals in the National Football League (NFL) to enlist in the U.S. Army following the terrorist attacks on September 11, 2001.

FOB Tillman was situated in a mountainous and remote area, which made it a strategically important base for monitoring and controlling cross-border movements and insurgent activities. The base was used to support military operations in the region, providing a secure location for troops to live, work, and launch missions.

The living and operational conditions at FOB Tillman were challenging due to its remote location and the hostile environment, with troops having to contend with harsh weather conditions, rugged terrain, and the ongoing threat of attacks from insurgents.

FOB Tillman was part of the broader U.S. and NATO military presence in Afghanistan, aimed at combating terrorism, supporting the Afghan government, and helping to stabilize the country. However, the status and presence of such bases have changed since the U.S. and NATO forces completed their withdrawal from Afghanistan in August 2021, leading to significant shifts in the geopolitical landscape and control of various regions within the country.