`  == Jargon == I found sources defining the three terms tagged as jargon if someone wants to edit them in. *``.. a thing called the jitterbug. Jitterbugging around, trying to surround enemy units with helicopters,...``  *``...squad sized elements. These elements had fixed areas of operations comparable to the squares of a checkerboard, and once in these areas of operations they moved continuously from one terrain feature to another in order to interdict the enemy.`` *more detail  *``...``Eagle Flight`` choppers were loaded with Vietnamese airborne troops who were dropped in to support ground forces at the first sign of enemy contact.``  *image 11  `