The team is looking to 'defend' its national title. [=to win the national title again]
As a U.S. senator, it is my responsibility to 'defend' [='uphold'] the Constitution.
She successfully 'defended' her championship. [=she won the championship again]
(..) You, too. Goodbye. Right, where were we? Uh, the presidential voice. Which, apparently, I don't have. You can defend my honor at any time. I will... when he says something I disagree with. Okay, so, what do you think the presidential voice is? Uh, "All of us here know (..)2016 TvShow: Designated Survivor Title: Pilot Season: 1 Episode 1
(..) of President of the United States... "...and will, to the best of my ability..." ...and will, to the best of my ability... "...preserve, protect, and defend the Constitution of the United States." ...preserve, protect, and defend the Constitution of the United States, so help me God. Mr. President. (..)2016 TvShow: Designated Survivor Title: Pilot Season: 1 Episode 1