the people risking their lives to get aid packages to remote ukrainian communites, as russian forces try to stop them. and trouble on the streets of the city of love, as tourists dodge rubbish bags due to strikes. a very warm welcome to the programme. we begin in california. the leaders of the us, britain and australia, meeting in california, have given details of a defence pact that will provide australia with nuclear powered attack submarines. president biden said the aukus pact would boost security in the indo pacific region for decades to come. the agreement comes in response to china s growing military strength and territorial claims. our political editor, chris mason, has more from san diego. a pact of old democracies, coming together to counter a new and growing adversary china. australia and the united kingdom are two of america s most stalwart and capable allies. our common values, ourshared vision for a peaceful, prosperous future unite us all across the atlantic