Volodymyr Zelensky on Saturday made his first official visit to the major trading port city of Mariupol, where he observed joint military exercises in the Sea of Azov

How are the Arctic Ocean, the Black and the Azov Seas interrelated in Russia’s strategic military thinking?

Last November, Russia seized three Ukrainian navy ships and captured dozens of sailors, sparking outrage in Ukraine. The case is now being heard at a UN sea tribunal in Hamburg, but Russia has vowed not to show

The institution of martial law could potentially have two kinds of impact: political and everyday. The question is, will it?

What are the military and informational dimensions of the attack in the Black Sea?

Washington is deeply concerned over the attack at Ukrainian vessels by Russia in international waters on Nov. 25, U.S. Deputy Assistant Secretary of Defense Laura Cooper has said

Shipping traffic has resumed to and from Ukraine’s ports on the Sea of Azov following a standoff with Russia, a Ukrainian minister has said

Kyiv asks for western presence in sea it shares with Russia, saying Putin is blocking ports

U.S. President says he is considering canceling his scheduled meeting with Russian President Vladimir Putin at the Group of 20 (G20) summit in Argentina this week over Russia's detention of Ukrainian sailors

Prosecutions launched in Crimean court against Ukrainian sailors captured by Russia in Kerch strait on Sunday

Ukraine has accused Russia of ramming one of its boats off the coast of the annexed Crimea, amid rising tensions

The Russian Federation Council has warned Ukraine it is able to close the Sea of ​​Azov to the Ukrainian ships within minutes

The handover ceremony took place on Thursday at the U.S. Coast Guard Yard in Baltimore

Hostilities in the Sea of Azov are heating up, and the U.S. is increasing its involvement

According to journalists, the two Ukrainian vessels are now in front of the Kerch Strait Bridge from the Taman peninsula to Russian-occupied Crimea

How the Kerch bridge built by Russia blocks and threatens the ports in Mariupol and Berdiansk