an enemy / revenge, vengeance / opponent (of the game or conflict) / (archaic, obsolete) marriage partner

的: (historical) (by extension from the red-light district usage) term of third-person reference: that guy, that one

enemy / foe

to rival

those (referring to things distant from the speaker)

business plan

aggressive, offensive

(idiomatic) to make plans

a full-scale attack, general attack

make a full-scale attack