Speaking in London after a second round of US-UK strikes on Huthi targets in Yemen, after Yemeni rebels attacks on vessels in the Red Sea, Belgian Prime Minister Alexander De Croo says his country is participating in a "complementary" European mission. "It's necessary to do that, because if the traffic is hindered, it will have an impact in our factories, it will have an impact on our prices", he says. IMAGES AND SOUNDBITES