WATCH LIVE: Obama defends drone policy

Obama is expected to use the speech at the National Defense University to delve into many of the details of his counter-terrorism strategy, including diplomatic and intelligence efforts as well as his blocked attempts to close Guantanamo Bay, according to a White House official.

The official, sharing the information on background, said on Sunday that the president’s remarks are an effort to hold true to the pledge he made to lawmakers in his State of the Union address to “continue to engage Congress to ensure not only that our targeting, detention and prosecution of terrorists remains consistent with our laws and system of checks and balances, but that our efforts are even more transparent to the American people and to the world.”

For more on Obama's speech, click here.