Rishi Sunak has said his government “will not hesitate to protect our security”, following joint US-UK strikes on Houthi targets in Yemen.He said the action aimed to send “a strong message” to the Houthi group that attacks on commercial shipping in the Red Sea were “unacceptable”.This is the first time Mr Sunak has committed the UK to new military action since becoming PM in October 2022.On Monday afternoon, he will take questions from MPs about the strikes.Speaking to reporters, Mr Sunak defended the action, saying it had been the “last resort” following “exhaustive diplomatic activity”.