memorial(n) something,such as a monument or ceremony,that honors a person who has died or serves as a reminder of an event in which people died
flagpole(n) a tall pole from which a flag hangs
capture(v) to take or get control of (a place) by force;to record(something-an image or an event)in a picture,film,etc.
raise a flag(expression) to lift a flag on or along a flagpole so that it stands up high;to put up a flag