#penetration.onset__incursion  an attack that penetrates into enemy territory
  supertype:  onset__attack__onslaught__onrush  an offensive against and enemy (using weapons); "the attack began at dawn"
  subtype:  breakthrough.penetration  a penetration of an enemy's defense in depth and strength
  subtype:  invasion  the act of invading; the act of an army that invades for conquest or plunder
     subtype:  inroad.invasion  an invasion or hostile attack
  subtype:  infiltration  a process in which a military force moves as individuals (or small groups) through enemy positions without detection
  subtype:  maraud__foray__raid  a sudden short attack
     subtype:  air_raid__airraid__air_attack__airattack  an attack by armed planes on a surface target
     subtype:  swoop.maraud  a very rapid raid

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