U.N. Squadron (US) is an arcade game released in the United States. Details regarding the development and publication history require additional research.  However, the name suggests a vertical shoot 'em up, possibly featuring fast-paced action, player-controlled aircraft, and waves of enemies.   The 'US' designation indicates it may have been a region-specific release, differing in some ways from international versions.

U.N. Squadron (US)

Typhoon