In a defiant response to President Trump’s 50-day ultimatum, Russia has unleashed another massive aerial assault on Ukraine, launching over 400 drones and a ballistic missile at key cities, including Kharkiv and Kryvyi Rih.

Codenamed Eastwood, the operation targeted the so-called NoName057(16) group, which was identified last month by Dutch authorities as being behind a series of denial-of-service attacks on several municipalities and organizations linked to a NATO summit in the Netherlands.

A Russian official says American Daniel Martindale has been rewarded with citizenship for spying on Ukraine, "by decree of our President Vladimir Putin."

Russia targeted Ukraine with more than 1,800 drones, 1,200 guided aerial bombs and 83 missiles of various types, President Zelenskyy said.

Trump's moves underline his growing disenchantment with Russian President Vladimir Putin over the lack of progress in U.S.-led efforts to secure a ceasefire.

Ukraine’s Security Service said Sunday they had killed Russian special service agents suspected of gunning down a fellow officer in Kyiv earlier this week, saying it believed Russia’s Federal Security Service was responsible.

Officials have warned Russian President Vladimir Putin that a demographic crisis could mean the country he leads will be short millions of workers by the end of the decade.

It is indicative of how Russia’s allies are propping up this war effort,” Angelica Evans from the Institute of the Study of War told The Post.