HARDtalk BBC World Service

Stephen Sackur speaks to Zsuzsanna Szelényi, a former ally, and now prominent opponent, of Hungary’s Prime Minister Viktor Orbán. Has Orbán found a political formula, illiberal democracy, for which his opponents have no answer?

Stephen Sackur speaks to the Russian foreign policy strategist and sometime Kremlin adviser Sergey Karaganov. Russia is widely expected to launch a major new offensive in Ukraine very soon, but this war has already exposed Moscow’s vulnerabilities. Is Putin placing bets he cannot win?

Stephen Sackur speaks to the boss of Oxfam Great Britain, Dhananjayan Sriskandarajah. He took over after Oxfam was hit by scandal with staff abusing their positions and power in Haiti. He promised to reimagine how international aid should be done and to put a new focus on global economic justice. Is his approach working?

Stephen Sackur speaks to Robert Malley, US special envoy for Iran. He’s an experienced diplomat facing a looming crisis. The attempt to revive a deal to curb Iran's nuclear ambitions appears to be dead, Tehran is repressing protests at home and arming Putin’s Russia in Ukraine. What can the US and its allies do about it?

Stephen Sackur speaks to Leopoldo Lopez, a key leader of Venezuela’s opposition. Once a political prisoner, now in exile in Spain, his efforts to topple the socialist regime led by Nicolas Maduro have been thwarted. Has Venezuela’s pro-democracy movement been outmanoeuvred?

Stephen Sackur speaks to Ukraine’s foreign minister, Dmytro Kuleba. The war with Russia has hit a winter stalemate, but what will spring bring? From battle tanks to air defences, Ukraine wants more help from its allies. Is Western wavering undermining Kyiv’s strategic options?