NATO member states, especially Europeans, should aim for a coalition of the willing to send troops to Ukraine, consisting of a core group of the U.K., France, Germany and Poland, with support by the United States.

President Volodymyr Zelensky has suggested that the parts of Ukraine under his control should be taken "under the Nato umbrella" to try and stop the "hot phase" of the war. He was asked by Sky News whether he would accept Nato membership, but only on the territory that Kyiv currently holds.

Ukrainian President Volodymir Zelensky said he might be willing to cede Russian-occupied portions of Ukraine to Russia in exchange for NATO membership for the rest of Ukraine.