Defense Secretary Ash Carter, center, sits for a meeting with U.S. Sens. John McCain of Airzona, Tom Cotton of Arizona, Lindsey Graham of South Carolina, Joni Ernst of Iowa, Cory Gardner of Colorado, and Daniel Sullivan of Alaska, in Singapore, June 3, 2016. Carter is in Singapore attending the 15th International Institute for Strategic Studies Asia Security Summit. DoD photo by Navy Petty Officer 1st Class Tim D. Godbee