Key Takeaways from the ISW:
- Russian forces may launch an Oreshnik intermediate-range ballistic missile (IRBM) at Ukraine in the next 24 to 48 hours.
- Russian President Vladimir Putin continued to posture Russian military strength during Russia’s June 12 Russia Day holiday while also acknowledging some of the battlefield setbacks Russian forces have faced in recent months.
- A Russian State Duma Deputy from the Communist Party criticized the Kremlin and the broader Russian war-waging strategy ahead of Russia Day, contradicting the Kremlin’s narrative.
- Russian sources released several pieces of footage showing Russian forces operating in Kostyantynivka as part of a deliberate cognitive warfare effort to exaggerate the Russian presence in the city. Russian forces continue to make tactical gains within Kostyantynivka and Ukraine’s ability to defend the southeastern sections of the city is deteriorating, however.
- Russian forces continue making tactical gains in Kostyantynivka — Russia’s assessed main effort for the Spring-Summer 2026 offensive — and have likely consolidated some tactical positions within the city beyond infiltration. These gains have taken Russian forces a long time to achieve and have come at a great cost.
- Russian forces will likely make tactical gains in Kostyantynivka in Summer 2026 but remain unlikely to achieve a rapid operational breakthrough against the Fortress Belt writ large.
- Russia is building at least five long-range drone launch sites in western Russia close to the border with Belarus likely to support drone strikes against Ukraine, possibly by exploiting Belarusian airspace.
- Ukrainian forces recently advanced in the Kostyantynivka-Druzhkivka tactical area and in the Oleksandrivka direction.
- Ukrainian forces struck Russian oil infrastructure on the night of June 11 and 12. Russian forces launched 117 drones against Ukraine overnight.
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