"The Black Sea will define the future of the European security order for generations to come," write Galip Dalay and Natalie Sabanadze.

U.S. President Donald Trump met with Ukrainian President Volodymyr Zelenskyy on August 18 in the Oval Office, alongside European leaders from Germany, France, and the United Kingdom. The meeting followed Trump’s August 15 summit with Russian President Vladimir Putin in Anchorage, Alaska.

Melania Trump took the unique step of crafting a letter calling for peace in Ukraine, having her husband Donald Trump deliver it to Vladimir Putin.

At the top of Vladimir Putin’s shopping-list is the western part of Donetsk province, which is still firmly in Ukrainian hands. But it is not just the symbolism that is important to him. The real prize is to force Ukraine to abandon its strategically critical “fortress belt”,

Ukrainian officials said the deadly strikes were a further sign that Russia had no intention of halting hostilities.

Russia’s illegal seizure of the Crimean Peninsula from Ukraine in March 2014 was quick and bloodless, and it sent Moscow’s relations with the West into a downward spiral unseen since the Cold War.

National security and military analyst Rebecca Grant joins 'Fox & Friends First' to discuss possible security guarantees for Ukraine amid Russian peace talks, Putin's demands and more.

Russian Foreign Minister Sergei Lavrov said on Tuesday that it was clear at Friday's U.S.-Russia Alaska summit that U.S. President Donald Trump and his team sincerely wanted to achieve a long-term and sustainable peace in Ukraine.