london british ship escort russian vessel pass near uk territorial water christmas britain defense ministry say tuesday add russian naval activity near britain increase holiday period frigate hms st albans depart dec. 23 track new russian warship admiral gorshkov move north sea royal navy vessel monitor russian ship christmas return dock portsmouth late tuesday uk defense minister gavin williamson say statement incident would hesitate defend water tolerate form aggression relations britain russia strain uk foreign minister boris johnson say abundant evidence moscow meddle foreign elections trip russia last week counterpart sergei lavrov say proof johnson claim johnson say want normalize relations russia moscow blame london poor state relations countries britain defense ministry say another ship hms tyne call escort russian intelligence-gathering ship north sea english channel christmas eve helicopter subsequently dispatch monitor two russian vessels britain escort russian ship near national water amid strain relations