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Kate Adie introduces dispatches from Colombia, Taiwan, Tunisia, Iraq and Germany.

Colombia's first-ever left-wing President, the former guerrilla fighter Gustavo Petro, has been sworn in, and questions about the country's peace dividend have sharpened. With the long-running insurgency disarmed, many Colombians hoped they’d soon be able to breathe more freely. Katy Watson visited the Cauca valley, where the benefits of peace have yet to trickle down to the grass roots.

The recent furore over Nancy Pelosi’s visit to Taiwan was a sharp reminder of just how much of a regional flashpoint this island's status can be. Rupert Wingfield Hayes knows this part of the world well – and he's seen its Taiwanese democracy evolve over several decades.

Tunisia was the birthplace of the Arab Spring uprisings just over a decade ago. The country ejected its long-time leader Zine al-Abidine Ben Ali and brought in a full parliamentary democracy, but since then it's seen prolonged political stalemate and infighting. The current President, Kais Saied, wrote a new framework which hugely extends the powers of his own office, which was approved by an apparently overwhelming majority at the polls. But the ´óÏó´«Ã½'s Middle East correspondent Anna Foster found that not everyone was celebrating.

In Baghdad, followers of the Shia cleric-cum-politician Muqtada al-Sadr took over the main parliament building recently. But having central government at a standstill leaves the prospect of finding solutions to Iraq's multiple social problems even further out of reach. The Sadrists insist their leader has the answers and should be enabled to govern unobstructed - Lizzie Porter talked to the demonstrators about what they really want.

The energy squeeze applied by rising fuel prices are being felt particularly sharply in Germany, which has historically depended on cheap gas from Russia. Some German regions are now proposing new limits on energy usage. Jenny Hill is in Bavaria, where frugal plans for the winter are very much on the minds of local politicians.

Producer: Polly Hope
Production Co-Ordinator: Iona Hammond