The phrase "as a conqueror" is correct and usable in written English.
It can be used to describe someone who is acting or being perceived in a dominant or victorious manner.
Example: "He entered the room as a conqueror, confident and ready to take charge of the situation."
Alternatives: "like a victor" or "in a triumphant manner".
Scipio then left Africa, but he was soon to return not as a peacemaker but as a conqueror.
But in Europe, the 1967 war began with the perception of Israel as a conqueror and occupier.
Charlemagne died more than 1,000 years ago and is usually billed as a conqueror, not a unifier.
He was renowned as a conqueror and builder who greatly expanded his territorial holdings and consolidated the conquered lands into a strong, unified empire.
"I could not understand how an entire nation like mine, an enlightened nation by all accounts, is able to train itself to live as a conqueror without making its own life wretched," Grossman wrote later, in "The Yellow Wind".
Boasting all the while of his prowess as a conqueror, but behaving, while he boasts, less intelligently than the flea or even the hookworm, man, the acculturated parasite, is now busily engaged in murdering his host.
Hobbes does this when he counts submission to a conqueror as consent, but Locke also runs this risk when he states, in §119 of the Second Treatise, that the "very being of anyone within the territories" of a government amounts to tacit consent.
It portrayed Mr. Gates as a nerdish conqueror and Mr. Jobs as a revolutionary creep.
His accomplishment was that much greater because he was a barbarian (in Chinese eyes) as well as a nomadic conqueror.
The Wanderer was a hefty beast, 20ft long (about the same as a Swift Conqueror 570) but significantly taller, at 11ft.
Iran beamed constant and effective propaganda at the Iraqi people, casting America as a brutal conqueror bent on devouring their country.
