From Our Own Correspondent Folgen

Kate Adie introduces dispatches on Iran, Ukraine, South Africa, Portugal and Hong Kong.As the world nervously watches the developments between Iran and Israel, Lyse Doucet reflects on the rise of Iran's Supreme Leader, Ayatollah Ali Khamenei. Since coming to power three decades ago, he has managed to avoid taking Iran into an all-out war - could that change as tensions continue to rise?A missile attack in the Ukrainian city of Chernihiv this week laid bare the weakness of the country’s air defences. Depleted ammunition supplies, as well as a worsening situation on the frontline, have heightened fears that the tide is continuing to turn against Ukraine in its war with Russia. Sarah Rainsford reports from Kharkiv.South Africa is preparing to go to the polls, and for the first time since the end of white-minority rule, the governing ANC party is predicted to get less than 50 per cent of the vote. As in many other countries, immigration is high on the list of many voters’ concerns. Jenny Hill reports from the border with Zimbabwe.Next week Portugal marks the 50th anniversary of the Carnation Revolution and its transition to democracy. Simon Busch met some of the men who joined the resistance against the country's former dictator Antonio Salazar, to find out what they think about politics in Portugal today.And exotic birds have adapted to live alongside humans in some of the world’s major cities – and in Hong Kong it's yellow-crested cockatoos that you might see swooping through the skyline. Stephen Moss tells the story of why they’re now thriving.Series producer: Serena Tarling Production coordinator: Katie Morrison Editor: Richard Fenton-Smith

Kate Adie presents stories from Israel, Nigeria, the US, Lithuania and FranceTensions between Iran and Israel this week have ramped up further after Tehran issued a warning that it would retaliate for a recent strike on the Iranian consulate in Damascus. Israel never claimed responsibility for the attack but is widely considered to be behind it. This has compounded fears the conflict between Israel and Gaza will spill into a wider regional war. James Landale has been on an air drop mission to Gaza and reflects on recent events.Ten years ago, 276 secondary school children were kidnapped in Nigeria's north-east by Islamist militant group, Boko Haram. Ninety one of the girls are still unaccounted for. Yemisi Adegoke went to meet some of the girls who escaped captivity – to hear about their memories of that day and its impact on their lives. Mental health experts have expressed alarm in the United States about an increase in the rates of suicide there, with a particularly steep rise among young people. Will Vernon went to North Carolina to investigate why the deaths are happening.Simon Worrall tells the story of the provenance of a wood panel painting by Rembrandt - a portrait of a beggar with a bulbous, drunkard’s nose. He traces it back from its origins in a Lithuanian Baltic Oak Forest to an auction house in Maryland. One hundred and twenty years after the ‘entente cordiale’ was signed between Britain and France, French troops this week took part in the Changing the Guard ceremony in London at the same time as their British counterparts in Paris. Hugh Schofield reflects on whether – despite appearances – the relationship has in fact grown more detached.Series Producer: Serena Tarling Editor: Bridget Harney Production Coordinator: Katie Morrison

Kate Adie introduces stories from Rwanda, Estonia, St Helena and Puerto Rico.This weekend marks the start of the genocide in Rwanda that led to the death of more than 800,000 people – most from the country’s Tutsi minority. Three decades on, Emma Ailes met those who, against the odds, survived the violence – but continue to live with the trauma to this day.Among those who survived the genocide is the BBC’s Victoria Uwonkunda, who was just 12 years old at the time. She recently returned for the first time in three decades, where she retraced her journey to sanctuary, and spoke to genocide survivors - and perpetrators - about the difficult path towards reconciliation and forgiveness.As a result of the conflict in Ukraine, NATO countries close to Russia, such as Norway, Latvia and Lithuania, are expanding their military conscription programmes. In Estonia - where military service is already mandatory – our correspondent Nick Beake met some of the country’s new recruits.Coffee from Jamaica to Ethiopia to Guatemala is a common sight in high-street cafes, but a more rarified blend comes from the Atlantic Island of St Helena. It’s high-quality and short-supply means it fetches a high price – but as Mark Stratton discovered, that doesn’t mean locals are reaping the benefits.It's hard to escape the Puerto Rican sound of reggaeton. Now a global phenomenon, it's created superstars in artists like Bad Bunny, Daddy Yankee and Vico C. Jane Chambers went to find out how this multi-faceted music reflects both the island’s culture – and politics.Series Producer: Serena Tarling Production Coordinator: Katie Morrison Editor: Richard Fenton-Smith