The United Nations voted overwhelmingly on Thursday to demand Russia immediately and unconditionally withdraw its troops from Ukraine, marking the one-year anniversary of the military campaign with a call for a "just and lasting" peace.

Ukraine earned strong backing in a non-binding vote that saw 141 of the 193 UN members in support, seven opposed and 32, including China and India abstaining.

Coming on the eve of the first anniversary, support for Kyiv was little-changed from that of last October when 143 countries voted to condemn Russia's declared annexation of four Ukraine regions. (AFP)