
Russian President Vladimir Putin demands a written pledge by NATO not to accept more Eastern European members and the lifting of several sanctions as conditions for ending Russia’s war in Ukraine, Reuters reported on May 28, citing three …
Amy B. Zegart

Russian President Vladimir Putin demands a written pledge by NATO not to accept more Eastern European members and the lifting of several sanctions as conditions for ending Russia’s war in Ukraine, Reuters reported on May 28, citing three …

Belarus will reduce the parameters of the upcoming Zapad-2025 military drills and move maneuvers further inland from the western border to reduce tensions in the region, Belarusian Defense Minister Viktor Khrenin claimed on May 28.
Zapad drills are …

Russia seeks to produce up to 500 drones per day, President Volodymyr Zelensky told journalists on May 27 during a press briefing, Suspilne reported.
Moscow has significantly increased the production of various drones over the past year, which it …

President Volodymyr Zelensky said on May 27 that he does not believe the U.S. would support a full Ukrainian withdrawal from four of its partially occupied regions, a demand repeatedly raised by Russia, Interfax-Ukraine news agency reported. …

President Volodymyr Zelensky arrived in Berlin on May 28 for talks with German Chancellor Friedrich Merz, as Germany seeks to project continued support for Kyiv in the face of Russian aggression.
The two leaders will discuss Germany’s military …

Russia mobilizes around 40,000-45,000 men for its military every month, while Ukraine mobilizes about 25,000-27,000, President Volodymyr Zelensky told journalists on May 27.
Moscow has only intensified its war effort despite calls by Kyiv, the U.S., …

Editor’s note: This story is being updated.
President Volodymyr Zelensky said on May 27 that he is ready for a three-way meeting with U.S. President Donald Trump and Russian President Vladimir Putin, Suspilne reported.
“We are ready to …

Editor’s note: This story is being updated.
Russian forces are accumulating 50,000 troops near Ukraine’s northeastern Sumy Oblast, seeking to create a 10-kilometer buffer zone in the area, President Volodymyr Zelensky told journalists in a …

Russia has lost around 983,890 troops in Ukraine since the beginning of its full-scale invasion on Feb. 24, 2022, the General Staff of Ukraine’s Armed Forces reported on May 28.
The number includes 1,050 casualties that Russian forces suffered …

U.S. Special Envoy for Ukraine Keith Kellogg on May 27 criticized former Russian President Dmitry Medvedev for comments that alluded to the threat of World War III, calling them “reckless” and “unfitting of a world power." …

U.S. State Department spokesperson Tammy Bruce advised Russia to focus less on President Donald Trump’s social media posts and more on ending its war against Ukraine.
“If the Russians cared about the nature of how [peace efforts are] proceeding, …

Editor’s Note: This is a developing story and is being updated.
Russian air defense shot down dozens of Ukrainian drones headed toward Moscow overnight on May 28, according to Moscow Mayor Sergey Sobyanin.
Writing on Telegram at 12:29 a.m. local …

President Volodymyr Zelensky said on May 27 that Ukraine is fully mobilizing its domestic industrial base to scale up production of drones, missiles, and other weapons systems, as the country braces for continued large-scale Russian attacks.
From May …

U.S. President Donald Trump is weighing new sanctions on Russia after a deadly weekend of missile and drone strikes across Ukraine, as Moscow delays delivering a promised peace proposal.
During a phone call with Russian President Vladimir Putin on …

Ukrainian military officials and defense analysts warn that Russia is preparing for a major offensive in Ukraine’s eastern Donetsk Oblast this summer, aiming to seize the territory it has failed to fully control since 2022.
Some analysts …

After an unprecedented three-day wave of Russian aerial attacks in Ukraine over the weekend, the world is once again looking to U.S. President Donald Trump to take his first steps toward forcing Moscow to end its violence.
From May 24 to 26, Russian …

A vast majority of Russian-speaking Ukrainians — those how primarily speak Russian at home — view Russia negatively, according to a survey published on May 27 by Kyiv-based think tank Razumkov Center in cooperation with the Kyiv Security Forum.
The …

Key developments on May 27:

A statement from German Chancellor Friedrich Merz on May 26 about long-range strikes inside Russia resurrected a long-held hope in Ukraine — that Berlin is finally about to send Kyiv its Taurus missiles.
“There are no longer any restrictions on …
In late March 2025, we reported on the formation of three new army corps. This included the 15th, 18th, and 20th Army Corps. Recently, we have discovered and confirmed the…