military installations of the taliban regime in afghanistan. taliban gone, the country is secure, the country is stable. >> i determined it's in our vital national under to send an additional 30,000 troops to afghanistan. >> out of the horror of 9/11 in a hunt for its mastermind osama bin laden. >> the united states has conducted an operation that killed osama bin laden. leader of al qaeda. >> four taliban senior leaders once detained at guantanamo bay released by the obama administration in 2014 in a prisoner swap for sergeant beau bergdahl, kidnapped in afghanistan after deserting his