The War in Afghanistan began in 2001 after the September 11 attacks in the United States. The U.S. and its allies aimed to dismantle the Taliban regime, which had provided shelter to the terrorist group al-Qaeda. The conflict involved military operations, nation-building efforts, and attempts to stabilize the country. Over the years, the war saw various phases, including the initial invasion, a prolonged counterinsurgency, and efforts to train Afghan security forces. Despite significant investments in military and humanitarian aid, challenges such as corruption, ongoing violence, and the resurgence of the Taliban persisted, leading to a complex and protracted conflict.