The research estimates that for every soldier killed, three or four are wounded in combat.
There are currently two private military groups deployed to the war in Ukraine.
Chechen Leader Ramzan Kadyrov said he has the personal intention of "fighting Satanism" throughout Europe, beginning with Poland.
President Joe Biden on Tuesday will deliver his second State of the Union address to likely his largest audience of the year.
A Swiss police file on the Russian patriarch referred to him as "Monsignor Kirill" and confirmed that he worked for the KGB, reports said.
A Russian web magazine last month interviewed former Wagner fighters who said the group follows an "attack or be shot" discipline.
Top Ukrainian official Oleksii Danilov claimed Brazil is one of the countries Russia is looking to act as an intermediary between Kyiv and Moscow.
Ukrainian Utah State basketball player Max Shulga noted that "emotions can run high" during the game, and people can say things they do not really mean.
The allegedly false information came after Poland began training Ukrainian personnel to operate German-built Leopard 2 battle tanks.
Ukrainian civilians in the city of Tokmak are being asked to move out onto the streets in order to accommodate local collaborators.
Ukraine says Russia's military death toll in the war has reached over 131,200.
Ukraine also reported additional losses in Russian military equipment during clashes over the weekend.
The secretive Ukrainian battalion recruits civilians or soldiers from other voluntary units.
Ex-Israeli Prime Minister Naftali Bennett said Russia's President Vladimir Putin made the promise during a meeting in the early days of the invasion of Ukraine.
Western economies agreed new price caps on Friday on Russia's exports of oil products that U.S. Treasury Secretary Janet Yellen said would build on the crude oil cap set in December.
Ukrainian President Volodymyr Zelensky warned their Western allies that Russia is "preparing to take revenge" with a new major offensive.
Russian news outlet Novye Izvestia estimated that there have been over 130 aviation accidents in the country since early 2022.
The 38-year-old Russian woman was charged with displaying "Nazi symbolism or symbols of extremist organizations."
The former U.S. lieutenant general said Russians would unlikely use nuclear warheads as they know it "won't change things on the ground."
Pentagon refused to comment on the matter, but it noted Ukraine's "remarkable performance" in retaking its territories from the Russian forces.
The Wagner Group is believed to be commanding at least 50,000 fighters in the war in Ukraine.
The data dump included information about thousands of Russian citizens who were clients of companies targeted by the surveillance program.