Moscow has called for the military exercises involving 5,000 NATO soldiers to be cancelled, threatening a response if necessary to protect national security.
Turkey's President Recep Tayyip Erdogan says the project is necessary for the safety of Istanbul amid growing ship traffic through the Bosphorus, one of the busiest maritime passages in the world.
From military to geopolitics, Ukraine would deliver NATO significant leverage over Russian influence in Eastern Europe and the Black Sea.
NATO's decade old Strategic Concept is woefully out of date and needs a major revamp.
With Russia actively undermining the interests of NATO and its partners in the Black Sea, the Alliance must adopt a formidable strategy to enhance its presence in the region.
The exercise comes amid increasing violations of a ceasefire in Ukraine's east and a massive Russian troops buildup on the border with Ukraine that raised Western concerns.
Russia's deputy foreign minister raised concerns over what he said was increasing Black Sea naval activity by powers that did not have a coastline in the region, an apparent reference to the United States.
Turkey's President Recep Tayyip Erdogan says Ankara is in a decision-making position in the eastern Mediterranean and its determined position remains the same.
The sprawling, opulent, secretive estate is something you've probably never seen before.
The French ended up making a massive arms sale and boosting their stature within the European Union. What did Greece get?
Six people have been rescued and two dead bodies retrieved from the sunken Palau-flagged cargo ship off the Turkey Black Sea coast, a Turkish official said.
Kanuni will join the Fatih drillship in the Black Sea, where 320 billion cubic metres of gas (bcm) was discovered recently.
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