The World Tonight

Ukraine has welcomed a commitment by Britain and France to station troops in the country in the event of a ceasefire agreement with Russia. But does the promise bring us any closer to a peace deal? We speak to an MP on the Commons Defence Committee about potential British deployments. Also on the programme: the White House has doubled down on its intention to take control of the Danish territory of Greenland, we hear reaction from a member of Denmark’s governing coalition; and Lego goes high tech as it unveils its latest smart innovation, bricks with chips.

Nicolas Maduro has insisted he's still the president of Venezuela as he pleaded not guilty to four charges of drug trafficking and terrorism. He told a court in New York that he was kidnapped by the US military. We speak to a journalist in the Venezuelan capital, Caracas, and hear from a former US ambassador to Venezuela. We also hear from the former Labour leader, now interim leader of the left-wing Your Party, Jeremy Corbyn, who protested tonight against the capture of Maduro.Also on the programme: new research by the Resolution Foundation suggests deaths could outnumber births in the UK in 2026; and we speak to the photographer who spotted the fake rear admiral at a Remembrance Day parade in Wales.

Iran's Foreign Minister Abbas Araghchi has warned President Trump against interference after he said the US would come to the rescue if protesters were killed. We speak to an Iranian academic supportive of the government and hear from a protestor who wants a return of the country's monarchy that was deposed in 1979.Also on the programme: we hear from the South Atlantic from a team trying to preserve the legacy of the explorer Sir Ernest Shackleton; and to mark the 50th anniversary of the children's show Rentaghost we speak two members of the cast, Lynda La Plante and Christopher Biggins.

Swiss authorities say about forty people are known to have died in a fire that ripped through a bar packed with young people celebrating the New Year in the ski resort of Crans-Montana. At least 115 were injured - many with severe burns. We speak to a doctor who's treated many of the victims, and one of the UK's leading fire safety experts.Also on the programme:leaked details of the government's upcoming special needs reforms have prompted concern that some pupils may no longer get specialist provision. The Labour chair of the education select committee says any changes mustn't remove an entitlement.And as the King prepares to release a documentary about his environmental activism on a major streaming network, we'll discuss how Charles is reshaping the role of the monarchy.

Israel is revoking the licences of 37 aid organisations working in Gaza, saying they failed to meet the requirements of new registration rules. The UK government is among those warning of the humanitarian impact the move could have. One resident of Gaza tells us of her fears. Also on the programme: With drones increasingly lighting up the skies at New Year’s celebrations, we hear a defence of the old-fashioned firework.And looking back as punk turns 50.