Ukraine

Russia calls the US an adversary and warns its warships to avoid Crimea

The G-7 urges Russia to stop “challenges” against Ukraine

Russia suspends most trips to Turkey until June 1

Ukraine says Russia has moved 80,000 troops to the border and Crimea, and Putin will not speak

The US threatens Russia with “consequences” if it acts “aggressively” in Ukraine

Ukraine says a soldier was killed in the east as tensions rise

Russian troops appear positioned near the border with Ukraine as tensions rise

The leaders of Ukraine and Turkey emphasize territorial integrity

Erdogan in Turkey calls for end to “worrying” developments in eastern Ukraine and offers support

Turkey says US warships will be deployed in the Black Sea until May 4