This is not the first time the Royal Navy and NATO have had to scramble ships and aircraft to track Russian vessels passing through the English Channel on their way to the Atlantic Ocean.

A British naval supply ship with an on-board helicopter was deployed to track the stealthy Kilo-class submarine Krasnodar, the Royal Navy said.

For three straight days, the British Navy closely followed a Russian submarine as it moved through one of the world’s busiest shipping lanes — the English Channel. The operation began when the Russian submarine,

NATO jets intercepted a unique Russian Tupolev Tu-134 aircraft—nicknamed “Black Pearl” by Western security experts—over the Baltics earlier this month.

The Kremlin said on Tuesday that European claims that Russian President Vladimir Putin wanted to restore the Soviet Union were wrong and that claims Putin plans to invade a NATO member were complete stupidity.

European leaders were stunned after the White House published its new National Security Strategy that flouted traditional Transatlantic relations assumptions.

Rep. Thomas Massie (R-Ky.) on Wednesday introduced a bill that would pull the United States out of the NATO alliance. Rep. Anna Paulina Luna (R-Fla.) said she would co-sponsor the bill,