If soldiers besiege a place, they surround it and wait for the people in it to stop fighting or resisting. The main part of the army moved to Sevastopol to besiege the town The Afghan air force was using helicopters to supply the besieged town
harass, as with questions or requests; "The press photographers besieged the movie star" surround so as to force to give up; "The Turks besieged Vienna" cause to feel distressed or worried; "She was besieged by so many problems that she got discouraged