The leaders of the US, UK and Australia are set to announce plans to provide Australia with nuclear-powered submarines. US President Joe Biden is on his way to California where he will be meeting the UK and Australian Prime Ministers. Many analysts say the AUKUS security alliance is aimed at countering China's influence in the Indo-pacific region. Al Jazeera's Alex Gatopoulos explains. Subscribe to our channel: http://bit.ly/AJSubscribe Follow us on Twitter / ajenglish Find us on Facebook / aljazeera Check our website: http://www.aljazeera.com/ Check out our Instagram page: / aljazeeraenglish #UnitedStates #Australia #UnitedKingdom #AUKUS #SubmarineDeal #Biden