Five years of war in Yemen have caused one of today’s worst man-made humanitarian crises. To resolve the conflict the Biden administration will have to grasp the nettle of subnational governance reform and be prepared to work with – not against – the Houthis in finding a sustainable political settlement.
The UK has two options for modernising its armour: developing a Challenger 3 or procuring Leopard 2. The latter is an assured capability that will likely prove cheaper over the life of the programme. The former is risky but offers the UK an opportunity to develop valuable intellectual property.