tail gunner

Noun

 * 1) One who operates the gun or guns in the tail of a military aircraft, usually a bomber.
 * 2)  One whose function in an organization is to defend it from attackers, for example, in public relations or public affairs.

Usage notes

 * In modern aircraft, such weapons would not be operated by dedicated personnel.

Synonyms

 * rear gunner
 * Tail End Charlie

Translations

 * Finnish: peräampuja
 * Japanese: 尾部銃手