Bangladesh, Feb. 25 -- Western European governments are unlikely to deploy troops to Ukraine without Russias approval, according to a report by The Telegraph, underscoring the profound strategic and political constraints shaping NATOs posture nearly four years into the conflict. The disclosure, attributed to unnamed diplomatic and defense sources, signals a more cautious internal assessment among European capitals than some public rhetoric has suggested.

The proposal at the center of the debate is a UK–French initiative to assemble a so-called “coalition of the willing” that could deploy European forces to Ukraine as a form of deterrence following a potential ceasefire or peace agreement. Proponents have framed the miss...