If Britain wants to remain a reliable partner in our security alliance, it must be willing to defend its sovereignty. As much as President Trump uses unpredictability as a diplomatic tool, I can predict one thing for sure: there is no way he will allow Britain to give up its sovereignty over the Chagos Islands.

Sir Keir Starmer has come under fire at PMQs over the cost of the government's deal to hand over the Chagos Islands to Mauritius. Earlier, the UK said newspaper reports that the effective price tag has jumped from £9bn to £18bn were "entirely inaccurate".

Britain struck a deal in October to cede sovereignty of the Chagos Islands to Mauritius - a former colony that became independent in 1968 - while retaining control under a 99-year lease of the military base on Diego Garcia, the largest island of the Chagos Archipelago.