[montag813]

InfoWars is the source, and they cite a CNN report and also a Russian source which is protesting and saying Turkey has no right, to which a Turkish source that said the country is "authorized to close the Straits to all foreign warships in wartime or when it was threatened by aggression."

So consider this suspect source, to be sure:

TURKEY BLOCKADES RUSSIAN SHIPPING, BLACK SEA FLEET COMPLETELY CUT OFF

[deks]

I just posted the article, which is from a radio station in New York city. The thread was deleted by the moderator...reason “Garbage article from garbage site”

[Enterprise]

Map of Black Sea

Bosporus Strait

It's a matter of terminology. When you look at the map of the Black Sea, you see Sevastopol, and to the left and down is Istanbul, astride the Bosporus Strait. Sevastopol is home to the Russian Black Sea Fleet. The BSF is central to Russian military and political doctrine, and critical to economic trade. Closing the Bosporus Strait effectively turns the Black Sea into nothing more than a large lake to the Russians as it closes off access to the Aegean Sea, the Mediterranean Sea, and most critically, the Atlantic Ocean. To Russia, this constitutes an act of war.