to besiege / to attack a city

Imperial palace

castle in ruins

(historical) Partizansk, Suchan (a town in Primorsky Krai, Russia)

to defend in a fort; to garrison / to stay at home, or in one's own room for a period of time

(historical) Hanseong (Seoul during the Joseon dynasty)

the emperor's residence, the imperial palace / the capital, especially within an empire

(historical) (Japanese colonial era) Seoul, also known as Gyeongseong (the Korean reading of these same Chinese characters) and Keijō

(obsolete) the emperor's residence, the imperial palace / (obsolete) the capital, especially within an empire

run into, hit, strike