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.
Intel agencies unlikely to find COVID origins without new information
New details a window into the intensity of the intelligence community's efforts to determine the pandemic's origins.
Intel community says climate change effects will "exacerbate risks" to national security
Intelligence agencies doubt nations will meet Paris climate accord's goal of keeping Earth's temperatures from rising less than 1.5 degrees C.
State Department watchdog to lead review into Afghanistan withdrawal
National Security Advisor Jake Sullivan also said in August the administration would conduct a "hot wash" review of the U.S. withdrawal.
Lawmakers pressure Blinken to act on Havana syndrome "crisis"
Bipartisan group of senators demands "heightened engagement" from Secretary of State Antony Blinken.
Biden signs bill to boost support for "Havana Syndrome" victims
The new law authorizes compensation for U.S. personnel and requires regular updates to Congress.