Search Result for "encirclement": 
Wordnet 3.0

NOUN (1)

1. a war measure that isolates some area of importance to the enemy;
[syn: blockade, encirclement]



WordNet (r) 3.0 (2006):

encirclement
    n 1: a war measure that isolates some area of importance to the
         enemy [syn: blockade, encirclement]