Donald Trump crossed a line by threatening economic warfare against the UK and other allies. He may have backed down, for now, but former Defence Secretary Sir Ben Wallace says we should be preparing for the potential of the US turning its back on NATO.

From nuclear missiles, to fighter jets and spare parts Professor Michael Clarke and Matthew Savill, a former policy chief in the MoD, explain our Armed Forces’ dependence on the US and how it could be de-risked.

It also raises yet more questions about US commitment to back any Ukraine peace plan.

Sitrep shares the latest from the battlefield, and hears from Ukrainian soldiers buying kit from a new Amazon-style online store, with incentive programmes to shape and monitor how they fight.

Why UK defence is “uniquely vulnerable” to US threats