Experts believe Ukraine may try to liberate either one or both occupied regions in its much-anticipated counteroffensive.
The United States publicly released data on its nuclear arsenal Monday and pressed Russia to do the same after Moscow said it was suspending participation in New START.
Kremlin officials who wanted to resign from their positions following the invasion of Ukraine were threatened with prosecution.
The FBI investigation into alleged collusion between Russia and Donald Trump's 2016 presidential campaign was based on flimsy evidence and seriously flawed, an independent US prosecutor said in a report published Monday.
Yevgeny Prigozhin, the head of the Wagner mercenary group, speculated on how four Russian military aircraft were shot down inside Russian territory.
Wagner chief Yevgeny Prigozhin reportedly extended the offer to Ukraine a number of times but was rejected due to a lack of trust.
"The myth of the mighty Russian army, which has haunted Europe and Germany for so long, is finally being dispelled," Ukrainian presidential advisor Mykhailo Podolyak said.
More than a thousand Russian military personnel perished on the battlefield over the weekend as their death toll continues to inch closer to the 200,000 mark.
Some of the strategic bombers near the border were involved in cruise missile attacks on Ukraine.
A Russian soldier indicated his willingness to surrender to a Ukraine-operated drone despite fears his colleagues in the military would kill him.
St. Petersburg resident Irina Tsybaneva, 60, left the note on the grave of Putin's parents in October last year.
Defense Secretary Lloyd Austin said the U.S. will continue to 'strengthen NATO's collective defense and deterrence.'
The Kremlin is now viewing Yevgeny Prigozhin a serious concern as he continues to publicly denounce the Russian military.
Russia is poised to mark another grim milestone in its war against Ukraine as the death toll of Russian soldiers inches closer to the 200,000 mark.
Russia has pulled tanks and howitzer armaments, first manufactured in the 1940s and decommissioned in the 1980s, from storage to use in its war in Ukraine.
Russian milbloggers claim the strike may have killed Ukrainian Chief Advisor Alexei Titarenko.
Russian mercenary boss Yevgeny Prigozhin complained on Wednesday that his Wagner fighters were still not getting enough shells from the defence ministry to underpin what he said was their advance in the eastern Ukrainian city of Bakhmut.
North Korean leader Kim Jong-Un has commended Russia for its victory against the Nazis in 1945 and expressed confidence in its ongoing war with Ukraine.
Wagner chief Yevgeny Prigozhin questioned the Russian army's capability to defend itself against Ukraine's counteroffensive.
The Ukrainian military has revealed that members of a Russian army brigade have been caught on video fleeing from the frontlines in the heavily contested city of Bakhmut.
Russia typically uses its Victory Day parade to show off the country's military strength.
Russia's Wagner mercenary group is now accepting Nazi sympathizers to join the war in Ukraine, despite Vladimir Putin's aim to "de-Nazify" the country.