What would a US backstop in a Ukraine peace deal likely entail according to Keir Starmer's allies?

According to allies of Keir Starmer, a US backstop would likely include air support, logistics assistance, and intelligence capabilities from the United States. These are resources that the UK doesn't possess in sufficient quantities to maintain peace effectively. This backstop is considered essential for any potential peace agreement, as Starmer has emphasized the need for US involvement while committing to potentially deploying British troops as part of a multinational peacekeeping effort in Ukraine. The commitment demonstrates the UK's willingness to contribute while acknowledging that American support remains crucial for sustainable peace.