AFGHANISTAN, May 28 - Russian forces conducted the largest Shahed drone strike against Ukraine since the start of the war overnight on May 27-28. The Ukrainian General Staff reported that Russian forces launched 59 Shahed-131/136 drones, of which Ukrainian forces shot down 58. Ukrainian Air Force Spokesperson Colonel Yuriy Ihnat characterized this strike as the largest drone strike since the start of the war and stated that Russian forces chiefly targeted Kyiv. Zhytomyr Oblast Head Vitaliy Bunechko reported that Russian drones struck an unspecified infrastructure facility in the oblast. The Russian allocation of aerial munitions to targeting Kyiv rather than prioritizing infrastructure or military facilities continues to constrain this limited Russian air campaign’s ability to meaningfully degrade Ukrainian offensive capabilities for the upcoming counteroffensive, as ISW has previously assessed.