US defence secretary Pete Hegseth has paused a planned shipment of advanced munitions to Ukraine amid growing concern over the country’s depleted stockpiles of weapons. The delay, stemming from a defence department review, affects key systems including Patriot interceptors and Hellfire missiles. This reassessment follows years of military aid to Ukraine and operations in the Middle East. While the Biden-era packages had approved these shipments, some are now being withheld, even after arriving in the region. The White House defended the move as prioritising US interests, but Ukrainian officials expressed frustration, calling the decision painful and warning that delays embolden Russian aggression. With Russia intensifying missile and drone attacks - launching the largest aerial assault since the 2022 invasion - Ukrainian leaders stressed the urgency of air defence support. Donald Trump has expressed a desire to supply Patriot missiles but acknowledged shortages. The pause comes as the USA also works to broker a ceasefire in the ongoing war.