Post-9/11 initiatives refer to a series of policies and programs implemented in the United States following the terrorist attacks on September 11, 2001. These initiatives aimed to enhance national security, improve intelligence sharing, and prevent future attacks. Key measures included the establishment of the Department of Homeland Security and the implementation of the USA PATRIOT Act, which expanded law enforcement's surveillance capabilities. Additionally, post-9/11 initiatives focused on international cooperation to combat terrorism. The U.S. engaged in military operations in Afghanistan to dismantle al-Qaeda and remove the Taliban from power. These efforts also included increased funding for counterterrorism programs and partnerships with other nations to share intelligence and resources.