foray

(noun) a sudden short attack. Synonyms: raid, maraud.

(noun) an initial attempt (especially outside your usual areas of competence). Examples: "Scientists' forays into politics."

(verb) steal goods; take as spoils. Synonyms: plunder, despoil, loot, reave, strip, rifle, ransack, pillage. Examples: "During the earthquake people looted the stores that were deserted by their owners."

(verb) briefly enter enemy territory.