How are Western efforts to end the Ukraine war being affected by recent developments?

According to European Policy Analyst Mattea Nellis, there is an evident upending of the united Western efforts to bring about an end to the war in Ukraine. This disruption appears to be occurring through changes in sanctions policies and military support for Ukraine, suggesting a significant shift in the previously coordinated approach among Western allies. This fragmentation of Western unity could have profound implications for Ukraine's position in peace negotiations and potentially compromise the international coalition that has been supporting Ukraine's defense against Russian aggression.