17:30House of LordsDefence & Security and Brexit & GibraltarBBC Parliament Duration: 4 hours, 20 minutes Tue 21st Mar 2017, 17:30 on BBC ParliamentLive coverage of proceedings in the House of Lords, including a debate on the UK Armed Forces and NATO, and a short debate on Brexit and Gibraltar.GenresFactualPoliticsNewsBrandHouse of Lords Source: BBC Online