Owing to its northerly position a large part of Ungava is treeless, and belongs to the barren grounds where caribou roam and feed on the socalled caribou moss, a greyish lichen. The caribou, moose, antelope, mountain sheep, beaver, otter and mink are scarce.
Espionage normally is not reconnaissance, because reconnaissance is a military force's operating ahead of its main forces; spies are non-combatants operating behind enemy lines. Often called  recce  (British and Canadian English) or  recon  (American and Australian English), the associated verb is reconnoitre.
force. 1  physical power or strength possessed by a living being: He used all his force in opening the window. 2  strength or power exerted upon an object; physical coercion; violence: to use force to open the window; to use force on a person. 3  strength; energy; power; intensity: a personality of great force.