a war measure that isolates some area of importance to the enemy

[ Syn: encirclement ]

prevents access or progress

hinder or prevent the progress or accomplishment of; His brother blocked him at every turn

[ Syn: obstruct , block , hinder , stymie , stymy , embarrass ]

render unsuitable for passage; block the way; barricade the streets; stop the busy road

[ Syn: barricade , block , stop , block off , block up , bar ]

obstruct access to

[ Syn: block off ]

impose a blockade on

[ Syn: seal off ]