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US Secretary of State Rex Tillerson has been meeting with the Turkish President Recep Tayyip Erdogan as relations deteriorate. But can the two Nato allies reconcile their difference over US-backed Kurdish fighters in Syria and the anti-government Turkish cleric Fethullah Gulen?
Also in today's programme, Owen Bennett Jones reports on life in Minnesota for tens of thousands of Somali-Americans. And is the Tasmanian Tiger really extinct?
(Photo: Rex Tillerson and Recep Tayyip Erdogan meeting in Ankara. Credit: Reuters)
As Britain filed for divorce from the EU, European leaders have rejected British Prime Minister Theresa May's plan for parallel talks on withdrawing and forming a new relationship. The German chancellor Angela Merkel said the EU must first work out how to extricate Britain from commitments built up during forty-four years of membership.
(Photo: British Prime Minister Theresa May leaves 10 Downing Street before heading to the Houses of Parliament before launching the process for leaving the European Union. Credit: BEN STANSALL/AFP/Getty Images)
Britain has formally notified the European Union of its intention to leave, initiating a period of negotiations. UK Prime Minister Theresa May said it marked a "historic moment" and a "unique opportunity". The triggering of Article 50 gives both sides two years to reach agreement unless both sides agree to extend the deadline for talks.
(Photo: Britain's ambassador to the EU Tim Barrow delivers British Prime Minister Theresa May's formal notice of the UK's intention to leave the bloc under Article 50 of the EU's Lisbon Treaty to European Council President Donald Tusk in Brussels. Credit: Emmanuel Dunand/AFP/Getty Images)
US-backed forces have paused their offensive against the so-called IS-stronghold of Raqqa to allow engineers to inspect the strategic Tabqa Dam. IS fighters claimed coalition air strikes had jammed the dam's gates, causing water levels to rise dangerously, potentially risking the lives of thousands of people.
Also in the programme: The civilian cost of the battle for Mosul; Thieves steal gold coin weighing 100 kilogrammes.
(Photo: Tabqa Dam near Raqqa. Credit: Reuters)
The elderly and injured, young children and rebel fighters with light weapons are being evacuated from the Syrian city of Homs. Most people will be taken to the city of Jarablus in northern Syria.
Also in the programme: Russian opposition leader Alexei Navalny sentenced to 15 days in prison; US-led anti-IS coalition continues investigation into civilian casualties in Iraqi city of Mosul.
(Photo: Evacuation continues in al-Waer, the last opposition-held district of Homs. Credit: BBC)
Thousands of Russians have taken part in anti-corruption rallies across the country, in defiance of the authorities. The biggest protests were in Moscow, where activists say at least seven hundred people (including opposition leader Alexei Navalny) were detained. We hear from an opposition activist and our correspondent in Moscow.
Also on the programme: Who the House Freedom Caucus are and why they are crucial for President Donald Trump to pass legislation; and the first ever woman to manage an Italian men's football team.
(Image: Police officers detain Kremlin critic Alexei Navalny. Credit: AFP / Evgeny Feldman for Alexei Navalny's campaign)