The Ukraine War: Your Questions Answered

Ben Brown in London and Sumi Somaskanda in Washington, examine the key questions about the Trump tariff rollercoaster of the last few days. Why has the US doubled down on China, with even steeper tariffs of 145%?

China says it won't give in to pressure from Donald Trump over tariffs but is willing to negotiate. Also: New prisoner swap between US and Russia, and research into mammal brains reveals a 'galaxy'.

President Donald Trump has announced a 90-day pause for countries hit by higher US tariffs, but a trade war with China has escalated. Also: Inuit people accuse adventurer of ignorance over Baffin Island trek claim.

Beijing retaliates against Trump with an 84% levy on American goods. Also: we look at what aid is getting through to earthquake survivors in Myanmar and why olive oil is the target for Italian armed gangs.

Hundreds of people were inside the Jet Set nightclub in the Dominican Republic's capital, Santo Domingo, when the roof collapsed. Also: major David Hockney art exhibition opens in Paris.

China says it will fight US tariff raises 'until the end.' Also: Iran confirms nuclear talks with the United States, we hear from Ukrainians under Russian occupation, plus new insights into the Titanic's final hours

US to impose additional 50% tariffs on Chinese goods. Also: Trump says high-level meeting with Iran will take place on Saturday. And researchers say migration leads to unhealthy diet changes.

Asian and European stocks drop as investors across the globe react to US president Donald Trump’s trade tariffs. Also: a BBC investigation into claims Palestinian prisoners were tortured in Israeli jails.

French far-right leader calls embezzlement conviction a 'witch hunt' at Paris rally. Also: mobile number mix-up blamed for White House security breach, Pope surprises crowds at the Vatican and Soccer Grannies World Cup.

Protesters across the US have taken to the streets in a show of defiance against Donald Trump’s policies. Also: what’s so compelling about jazz, and is British English slang being adopted across the Atlantic?