New Delhi, July 4 -- Ukrainian President Volodymyr Zelensky and US President Donald Trump spoke for 40 minutes on July 4, described by Zelensky's top aide as a "very important and meaningful conversation."

This call came just one day after Trump expressed deep frustration with Russian President Vladimir Putin, stating: "I'm very disappointed with the conversation I had today with President Putin... I don't think he's looking to stop this fighting."

The leaders focused on Ukraine's urgent need for air defense systems as Russia intensified attacks.

During Trump's July 3 call with Putin, Russia launched one of its largest aerial assaults, firing 550 missiles and drones at Kyiv and other regions. Zelensky called the timing "deliberately ma...