Ukrainian Foreign Minister Dmytro Kuleba insisted on Wednesday that NATO allies are showing no sign of war fatigue and remain committed to helping Ukraine defend itself against Russia and take back occupied territory.

Amid rising tensions with Russia, NATO militaries are expanding their focus and preparing for operations from the seafloor to outer space.

Ukraine will not surrender land to Russia in exchange for Nato membership, its foreign minister said, as a US official predicted that President Putin was unlikely to consider calling off his invasion