Remains thought to be those of 25 American servicemen missing in Vietnam arrived on U.S. soil to an honors ceremony Thursday.

The 25 flag-draped caskets were unloaded one by one from an Air Force C-141 transport plane and carried to a green Army bus on the windy tarmac at Hickam Air Force Base. A joint honor guard of senior officers from the Army, Navy, Air Force, Marines and Coast Guard stood at attention as each casket was carried from the plane.Also present for the ceremony was a joint color guard carrying flags representing all of the services as well as the American flag.

U.S. authorities said the 25 sets of remains were tentatively identified as Americans by Vietnamese experts. Vietnamese authorities also turned over some information about seven other Americans missing in action.