As early as 1966 Secretary of Defense Robert S. McNamara had become disenchanted with Rolling Thunder.

As early as 1966 Secretary of Defense Robert S. McNamara had become increasingly disenchanted with the bombing of the north.

Secretary of Defense Robert M. Gates imposed "a one-year limit to the length of Federal deployments for National Guard Soldiers."

The proposal was sent for approval to the Secretary of Defense, Robert McNamara, but was not implemented.

Under Secretary of Defense Robert F. Hale acknowledged enterprise-wide weaknesses with controls and systems.

Last month, Secretary of Defense Robert M. Gates visited Baghdad, with a message similar to the one carried here on Wednesday by Mr. Cheney.

Secretary of Defense Robert S. McNamara shocked many observers when he announced that this new Air Assault division would be combat ready in only eight weeks.

Secretary of Defense Robert S. McNamara wondered if he had seen his last sunset.

In Congressional testimony, Secretary of Defense Robert M. Gates has said that he sees no need to enter Iranian territory.

In 2010, Secretary of Defense Robert M. Gates named Cross to a three-year term on the Defense Science Board.