Royal Navy escorts Russian warships through the English Channel. Over the past two days, the Royal Navy has successfully escorted five Russian ships through to the North Sea. Patrol ship HMS Tyne led the operation, supported by the Dutch patrol ship Zr.Ms. Holland from the Koninklijke Marine (Royal Netherlands Navy). A Dutch Coast Guard aircraft and an NH-90 maritime attack helicopter provided additional surveillance and support throughout the operation. The Russian ships are believed to be returning to their home port after deployment in the Mediterranean Sea. Prior to reaching the North Ssa, the fleet was escorted by the Belgian patrol ship BNS Castor through the Belgian EEZ. The Royal Navy frequently undertakes such missions to enforce maritime security and uphold international laws, which permit the right of free passage through these waters.