。
Who wouldn't wish for peace and security?
Literal
Peace [and-と] safety [object-を] who [subject-が] wish-not would.
A rhetorical question using 誰が~であろう: 'who would not wish?' The answer is obviously 'no one.' であろう is the formal volitional/suppositional of である — literary and authoritative. This is the question-form equivalent of the double-negation superlative pattern.