Historical Battles And Sieges

noun the state of being surrounded or enclosed by something

• The military strategy involved the encirclement of the enemy forces.
• The cops set up an encirclement around the building to catch the suspect.
• We were totally encircled by the paparazzi at the event.
• The feeling of loneliness was like an encirclement that I couldn't escape from.

verb to come upon unexpectedly or suddenly; to happen or occur suddenly

• The responsibility to address this issue will fall upon the shoulders of the board of directors.
• It looks like the task of planning the event will fall upon us.
• The cleanup duty always seems to fall upon me, it's so unfair.
• When the truth finally came out, the weight of reality fell upon her like a ton of bricks.