Europe Steps Up: Ukraine Support After Four Years of War

· This brief provides a big-picture overview of support for Ukraine after four years of war. The key finding from 2025 is that Europe has almost offset the collapse in US support.

· US aid fell by 99 percent. At the same time, Europe sharply increased its aid allocations, by 59 percent for financial and humanitarian aid and by 67 percent for military aid compared to the 2022–24 average. As a result, total aid in 2025 remained close to previous years.

· Within Europe, financial and humanitarian aid is now dominated by EU institutions, as EU loans and grants account for 89 percent of these flows in 2025. Military aid is ever more concentrated on a few countries. Northern and Western Europe accounted for about 95 percent, in particular Scandinavia, Germany, the United Kingdom. In contrast, the military aid from Southern and Eastern Europe continued to fall.

· To help replace US support, NATO launched the PURL initiative, through which donors purchased US weapons for Ukraine worth EUR 3.7 billion in 2025, including HIMARS and Patriot systems. Donors also increasingly procured weapons directly from Ukraine’s defense industry. The share of procurement in Ukraine reached 22 percent in late 2025.

Kiel Institute Experts