Russian fighter jets 'buzz' US Navy warships in the Baltic Sea
In addition to safeguarding maritime navigation, the ships are meant to "respond to new types of modern threats like piracy and international terrorism.".
The fleet is expected to carry out drills north of Scotland before sailing just miles from the English coast.
A Nato naval source told The Telegraph: “It’s not catching us by surprise, we are working up what to do and we are all over it. "The most likely thing is that they will go through the North Sea, down the Dover Strait and through the Channel.
“They might even stop off the North East coast to fly for a bit.”