NATO Secretary-General Jens Stoltenberg met with President Volodymyr Zelenskyy to discuss the status of the war and needs of troops on Thursday, the day after Russia accused Ukraine’s Western allies of helping plan and conduct last week’s missile strike on the Black Sea Fleet’s headquarters on the annexed Crimean Peninsula.

Zelenskyy said that Stoltenberg agreed to make efforts to get NATO members to help provide additional air defense systems to protect Ukraine’s power plants and energy infrastructure that were badly damaged in relentless and deadly attacks by Russia last winter. He also reminded the secretary-general of the persistent attacks that often strike civilian areas, including 40 drone attacks overnight.

“In the face of such intense attacks against Ukrainians, against our cities, our ports, which are crucial for global food security, we need a corresponding intensity of pressure on Russia and a strengthening of our air defense,” Zelenskyy said. “The world must see how Russia is losing dearly so that our shared values ultimately prevail.”

Stoltenberg said that NATO has contracts for 2.4 billion euros ($2.5 billion) in ammunition for Ukraine, including 155 mm Howitzer shells, anti-tank guided missiles and tank ammunition.