Russia-Ukraine updates: Putin suspends key US-Russia nuclear treaty in speech denouncing West
President Vladimir Putin said he'd sought an "open dialogue" with the West.
Almost a year after Russian President Vladimir Putin launched a full-scale invasion of neighboring Ukraine, the two countries are engaged in a struggle for control of areas throughout the east and south.
Putin's forces pulled out of key positions in November, retreating from Kherson as Ukrainian troops led a counteroffensive targeting the southern port city. Russian drones have continued bombarding civilian targets throughout Ukraine, knocking out critical power infrastructure as winter sets in.
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Plans underway for Zelenskyy to visit Capitol Wednesday and address Congress: Sources
Plans are underway for Ukrainian President Volodymyr Zelenskyy to visit the U.S. Capitol on Wednesday, sources told ABC News.
The speech comes as the U.S. is set to announce a military aid package for Ukraine that includes Patriot air defense systems, U.S. officials told ABC News .
Zelenskyy previously addressed Congress via video on March 16, roughly three weeks into the war with Russia.
US to announce Patriot defense systems deal in aid package Wednesday: Sources
U.S. officials told ABC News that the next military aid package for Ukraine will be announced Wednesday and that it will include Patriot air defense systems and JDAM precision bomb kits.
-ABC News' Luis Martinez
100,000 Russian soldiers killed, defected or missing in war: UK defense chief
More than 100,000 Russian soldiers battling in Ukraine have either been killed, reported missing or defected since the war began in February, according to estimates released Tuesday by British Defense Secretary Ben Wallace.
Marking the 300th day of the war, Wallace provided the update on Russia's war losses to the House of Commons in London. He also estimated that 4,500 Russian armored vehicles have been destroyed as well as 140 Russian helicopters and fixed wing aircraft.
The estimated losses by Russian forces are similar to what Ukrainian officials have released.
Wallace said the number of missions to Ukraine by the Russian Air Force have drastically declined from 300 a day in March to currently tens of missions per day.
He described Russia’s once powerful Black Sea fleet as "little more than a coastal defense flotilla."
In March, Russia occupied about 27% of Ukrainian territory, Wallace said. Since then, Ukraine liberated around 54% of the territory that has been taken since February.
He said Russia now controls roughly 18% of internationally recognized areas of Ukraine.
The Kremlin has yet to respond to Wallace's battlefield estimates.
Russia has failed to achieve any strategic objectives, Wallace said, adding that not one Russian operational commander who was in place at the start of the Russian invasion Feb. 24 remains.
Wallace also spoke about a deal between the Kremlin and Iran to supply Russia with more than 300 kamikaze drones.
"Iran has become one of Russia's top military backers," Wallace said.
He said that in exchange, Russia intends to provide Iran with advanced military components, undermining international security, particularly in the Middle East.
"We must expose that deal," Wallace said.
Zelenskyy visits front line in Donetsk
Ukrainian President Volodymyr Zelenskyy on Tuesday made an unannounced trip to Bakhmut, Donetsk Oblast, posing for pictures with soldiers and handing out awards, as he inspected the front lines.
Zelenskyy said Monday that Bakhmut remains the "hottest point" out of the entire 1,300-kilometer front line as Russian forces relentlessly try to break Ukraine's defenses in the city.
-ABC News' Guy Davies