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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Biden says Zelenskyy's statements on Poland missile incident are 'not evidence'
President Joe Biden was asked by reporters Thursday what his reaction was to Ukrainian President Volodymyr Zelenskyy denying that the missile that landed in Poland was Ukrainian.
"That's not the evidence," Biden responded.
On Wednesday, the White House told reporters it had "seen nothing" to contradict the assessment that the explosion in Poland was likely caused by a Ukrainian defense missile.
"We will continue to assess and share any new information transparently as it becomes available. We will also continue to stay in close touch with the Ukrainians regarding any information they have to fill out the picture," National Security Council spokesperson Adrienne Watson said in a statement.
-ABC News' Lauren Minore
Zelenskyy disputes claim that missile blast in Poland was fired by Ukraine's air-defense system
Ukrainian President Volodymyr Zelenskyy pushed back Wednesday against claims that a Ukrainian defense missile landed in Polish territory on Tuesday, killing two.
Polish President Andrzej Duda said Wednesday that the Russian-made missile likely came from Ukraine's air-defense system.
U.S. Defense Secretary Lloyd Austin said he backs Duda's assertion.
-ABC News' Luis Martinez, Matt Seyler and Tom Soufi Burridge
Ukrainian air defense missile likely caused deadly blast in Poland: US official
The U.S. believes that the missile strike was likely due to a Ukrainian air defense missile, according to a U.S. official. The missile strike killed two Polish civilians.
-ABC News' Luis Martinez
CIA director met with Zelenskyy in Kyiv after meeting Russian counterpart
CIA Director Bill Burns traveled to Kyiv to meet with Ukrainian President Volodymyr Zelenskyy on Tuesday, following a meeting with his Russian counterpart in Turkey, according to a U.S. official.
Burns was in the Ukrainian capital during Tuesday's widespread Russian missile strikes.
"He is safe and was safely in the U.S. embassy during the strikes," the official said.
While in Kyiv, the official said, Burns "discussed the U.S. warning he delivered to the head of Russia's SVR not to use nuclear weapons and reinforced the U.S. commitment to provide support to Ukraine in its fight against Russian aggression."
-ABC News' Ben Gittleson