President Vladimir Putin intends to keep fighting in Ukraine until the West engages on his terms for peace, unfazed by Donald Trump's threats of tougher sanctions, and his territorial demands may widen as Russian forces advance,

The time frame for the further arms deliveries, which European countries have agreed to pay for, is crucial. Russia is making a summer push to break through along the 620-mile front line, and its drones and missiles are hammering Ukrainian cities more than at any time in the war.