Sentence:  If our SAC bombers were , today , capable of surviving a surprise missile attack and because of infinite dispersion or long endurance had the capability to <WSD>strike</WSD> at Russia again , and again , and again , those bombers would unquestionably assure our military dominance . 
Meaning of the word marked with <WSD> tags:  make a strategic, offensive, assault against an enemy, opponent, or a target