What would a US backstop for UK troops in Ukraine likely involve?

While Keir Starmer avoided providing specific details, his allies have suggested that a US backstop would likely include air support, logistics assistance, and intelligence capabilities. These are resources that the UK lacks in sufficient quantities to maintain peace independently. The backstop represents essential US contributions that would complement British troops in any potential peacekeeping mission in Ukraine. This US support is considered crucial for the effectiveness and sustainability of any peace agreement that might be achieved in the conflict.