A renewed drive is testing NATO unity over how to source weapons for Ukraine.

Pressure is mounting on NATO member states to step up purchases of United States-made weapons for Ukraine, according to a report by the Brussels-based outlet Euractiv. The push, aimed at bolstering Kyiv’s battlefield supplies, is reanimating long-running debates within the alliance over procurement, industrial capacity and strategic dependence.

Advocates of buying more American equipment argue that tapping established US production lines could help speed deliveries to Ukraine as the war grinds on, Euractiv reports. The emphasis on availability and rapid scale-up reflects concern that delays in sourcing and manufacturing risk leaving Ukraine short of critical capabilities.

The reported pressure also highlights a sensitive question for European capitals: how to balance urgent support for Ukraine with efforts to strengthen Europe’s own defence industrial base. Some policymakers worry that leaning more heavily on US suppliers could deepen transatlantic reliance and redirect limited budgets away from domestic manufacturers at a time when Europe is trying to expand its production.

For NATO, which coordinates support for Ukraine but does not itself purchase weapons, the issue underscores the challenges of aligning 32 national decisions behind a common strategic objective. Governments face competing demands, from replenishing their own stocks to meeting fiscal constraints, even as they seek to maintain allied cohesion.

The discussion is likely to intensify as countries review upcoming assistance packages and industrial plans. While there is broad agreement across the alliance on sustaining Ukraine’s defence, how best to source the weapons needed remains a live question—one now brought into sharper focus by the latest calls to buy American.