東征西討

war on all sides (idiom); fighting from all four quarters

surname Dong

east / host (i.e. sitting on east side of guest) / landlord

punitive expedition to the east

journey / trip / expedition / to go on long campaign / to attack

to invite / to recruit / to levy (taxes) / to draft (troops) / phenomenon / symptom / characteristic sign (used as proof) / evidence

the West / abbr. for Spain 西班牙[Xi1 ban1 ya2] / Spanish

to invite / to provoke / to demand or ask for / to send armed forces to suppress / to denounce or condemn / to marry (a woman) / to discuss or study