The United States offers to exchange imprisoned Russian arms dealer Viktor Bout for detained Americans Brittney Griner and Paul Whelan, who are accused of drug offenses and spying, respectively.
Russian President Vladimir Putin signs a bill extending the New START nuclear arms reduction treaty with the United States until 2026, ahead of its expiration date next week, following talks with U.S. President Joe Biden.
Australian-British academic Kylie Moore-Gilbert is freed by Iran in an apparent prisoner exchange with Australia for three Iranians. Moore-Gilbert had been arrested for espionage. Australian Prime Minister Scott Morrison calls her release a "miracle".
The Court of Appeal in Kyiv, Ukraine, rules to release Volodymyr Tsemakh, a person of interest in the case of the downed Malaysia Airlines Flight 17. President of Russia Vladimir Putin says both countries are finalizing negotiations on a "rather large-scale" prisoner exchange.
Reports surface about the publication on January 29 by the United States of a list of Russian politicians and oligarchs that the U.S. government was required by CAATSA to draw up. Russian President Vladimir Putin says that the list, on which he is not included, is an "unfriendly act" that complicates ties between the two countries.
A Russian Sukhoi Su-27 fighter jet makes an "unsafe close-range intercept" of a United States Navy P-8A Poseidon over the Black Sea in international airspace, coming within 10 feet (3.3 m) of the U.S. aircraft.