Synonyms:
siege, besieging, beleaguering, military_blockade
Meaning: the action of an armed force that surrounds a fortified place and isolates it while continuing to attack
Usage examples
Indeed, at the same time while he was commencing the siege of Narva, his ally, the King of Poland, advanced from his own dominions to Riga, and was now prepared to attack that city at the same time that the Czar was besieging Narva.