U.S. sanctions four Ukrainians it alleges were working with Russia
Two of the four are currently members of the Ukrainian parliament. The U.S. has also authorized third-party weapons transfers to Ukraine.
CIA Havana Syndrome task force rules out foreign attacks in most cases
Two dozen cases remain "unresolved" and will be the focus of "active and intense investigation," a senior CIA official said.
Blinken warns Russia could attack with "very short notice"
Blinken's visit to Kyiv is the first of three stops in a last-minute diplomatic push to urge Moscow not to attack Ukraine.
Blinken to meet Russian counterpart amid rising concerns over buildup near Ukraine
U.S. officials warned Tuesday that Russia could launch an attack at any point.
U.S. says Russia is creating possible "pretext for invasion" of Ukraine
The U.S. has information indicating Russia prepositioned a group of operatives to conduct a false-flag operation in eastern Ukraine – groundwork for a possible "pretext for invasion," an official said.
NATO and Russia fail to resolve "significant differences" over Ukraine
"There are significant differences between NATO allies and Russia on these issues," NATO Secretary General Jens Stoltenberg said.
U.S.-Russia talks notch minor progress on arms control but remain stuck on NATO expansion
Russia's deputy foreign minister Sergei Ryabkov, who led the Russian delegation, told reporters after the nearly eight-hour meeting that the talks were "very professional" and repeated that Moscow had no intention of attacking Ukraine.
Diplomatic talks with Russia: What you need to know
High-stakes talks are underway as the U.S. and its allies worry about Russia massing more than 100,000 troops along Ukraine's eastern border.
Bipartisan lawmakers call on Biden to speed up lethal aid to Ukraine
Members of the House Armed Services Committee visited Ukraine on a three-day codel over the weekend.
Russia amassing troops near Ukrainian border: What you need to know
U.S. intelligence is warning that Russia could invade Ukraine as early as January, a U.S. official confirmed to CBS News last week.
U.S. warns of possible Russian invasion of Ukraine with 175,000 troops in 2022
The plans involve extensive movement of 100 battalion tactical groups with an estimated 175,000 personnel, along with armor, artillery and equipment, according to an administration official.
CIA publishes new account describing "challenges" of briefing Trump
"Trump was like Nixon, suspicious and insecure about the intelligence process, but unlike Nixon in the way he reacted," according to a new account.
U.S. officials warn of possible Russian military incursion into Ukraine
An incursion could happen in a matter of weeks, barring intervention from the West, U.S. officials briefed on the matter told CBS News.
Secretary of state appoints 2 diplomats to lead "Havana Syndrome" response
American diplomats and intelligence officers around the world continue to report symptoms.
CIA director meets in Moscow with top Russian official amid high tensions
The Biden administration has been trying to foster a more stable and predictable relationship with the Kremlin.