Ukraine is struggling to secure fresh commitments from NATO allies to purchase U.S. weapons for the war-torn country, Kyiv¡¯s envoy to the military alliance said.

Currently, a small handful of countries are paying for the bulk of the weapons, and the U.K. is the only contributor that has recently joined the fold, Ukrainian NATO Ambassador Alyona Getmanchuk said. It¡¯s becoming difficult for Ukraine to approach the same few countries over and over, she added.

The reluctance is compounding Ukraine¡¯s growing financial predicament as Russia¡¯s invasion grinds through its fifth year and peace talks stall. Hungary is separately blocking the release of a crucial €90 billion ($104 billion) European Union loan for Ukraine, and a political spat in Ukraine¡¯s parliament is threatening to delay International Monetary Fund aid payments.