however, after the 1968 tet offensive in which the communist north vietnamese and vietcong troops attacked positions throughout the republic of vietnam, the pentagon dispatched four air national guard fighter squadrons to that nation. in addition, the pueblo crisis in korea also saw mobilized air force reservists, air national guardsmen and naval reservists in flying units. that crisis prompted the third partial air national guard mobilization since the end of world war ii, and eventually two ang fighter squadrons were dispatched to south korea. however, the pueblo crisis ended without a resort to combat.