Russia Summer Offensive Continues With Overnight Strikes; ISW Says Putin Army Expansion No Battlefield Impact
Russian forces continued overnight long-range drone and missile strikes against Ukraine through Monday morning, with strikes recorded in the Sumy and Zaporizhzhia regions. The Institute for the Study of War reiterated that President Putin’s decree expanding the Russian armed forces will not affect the battlefield situation. The United Nations recorded May 2026 as the month with the highest civilian casualties in Ukraine since April 2022. President Zelensky warned over the weekend that Moscow’s new bases near Europe’s borders signal a long-term anti-democratic strategy. Ukrainian drone strikes hit fuel-storage facilities in Russia’s Yaroslavl region.
The Iran-framework signing late Sunday has implications for Russia-Ukraine: the lifting of the Iranian energy supply-shock risk reduces Russia’s strategic-leverage position on global energy markets. The CIA Saturday-night Oreshnik IRBM warning remains in active operational effect; the warning has not yet operationalised into a strike but the 24-48 hour window stretches into Monday. The ISW assessment that the Putin army-expansion decree will not affect the battlefield is the structural assessment that Russia’s force-generation constraint is operational, not nominal. The London-summit Patriot interceptor replenishment commitment continues to ramp into operational delivery. The G7 Summit Monday-Tuesday in France will discuss Russia-Ukraine alongside the Iran framework.