PM considers biggest possible offer to NATO and prepares to stand up UK Armed Forces to protect alliesUK considering options to double troop numbers and send defensive weapons to EstoniaFast jets, warships and military specialists could be sent to protect NATO alliesPM expected to speak to Putin this week and to travel to the region in coming daysThe UK is expected to bolster its offer to NATO with a major military deployment to strengthen Europe’s borders in the face of rising Russian aggression. UK officials will be deployed to Brussels to finalise the details of the offer with NATO next wee…