Baroness Warsi resigned from the government because she wants to be able to live with herself and she could not in good conscience support the government's policy on Gaza.
Speaking to the Radio 4's Today programme she said: "My departure clearly says says that governments policy on Gaza is morally indefensible. My departure clearly says that it is a policy that I could no longer support and put my name to..
The Conservative peer added: "Long after politics has come and gone I want to be able to live with myself and by resigning and stepping down I can live with myself."
More top news
Four migrants who tried to cross the Channel in an inflatable dinghy have reportedly been rescued by French coastguards.
The victim, a man in his 40s, is being treated in hospital for "life-changing" injuries after the attack by two men who remain on the run.
Heavy security presence as 64,000 fans gather at the Stade de France stadium for the Six Nations rugby match between France and Italy.