The terrorists on the third plane, American Airlines Flight 77, crashed into the Pentagon which is the headquarters of the United States Department of Defense.
Diyaaraddii 3aad oo ku tirsanayd duulimaadka American Airlines,ahaana duulimaad lambar 77,  ayaa ku dul burburtay dhismaha Pentogan oo ah saldhigga ugu weyn ee wasaaradda gaashaandhigga ee Mareykanka.