World leaders come face to face

President Biden is in Europe for a week of intense top-level diplomacy, including a G7 summit, a gathering of NATO leaders, and then face-to-face talks with Vladimir Putin. It’s the first overseas trip for the US President since his election — and a chance for him to demonstrate his commitment to restoring America’s relations with allies, strained under Donald Trump’s administration. We hear about the issues likely to dominate in the coming days. We’ve a special report from a huge exercise in America’s deep south, which saw troops from the Welsh Cavalry training in extremely harsh conditions. Three months from the deadline for withdrawal from Afghanistan, we ask if western powers are willing to stand by and watch the Afghan government be deposed by the Taliban. And we report on how military leaders are stepping up the fight against climate change.