Sens. John McCain (R-Ariz.), Joe Lieberman (I-Conn.), Lindsey Graham (R- S.C.) and Kirsten Gillibrand (D-N.Y.), visit International Security Assistance Force Headquarters in Afghanistan during a congressional delegation tour, Nov. 10. The senators also received a brief from Gen. David H. Petraeus, commander of NATO and ISAF in Afghanistan. ISAF is a key component of the international community’s engagement in Afghanistan, assisting Afghan authorities in providing security and stability while creating the conditions for reconstruction development.