In response to what has become known as the Gulf of Tonkin incident in 1964 , Tactical Air Command ( TAC ) pilots , navigators and support personnel found themselves deployed from the CONUS to PACAF bases such as Da Nang Air Base and Phan Rang AB in South Vietnam .
ADP NOUN ADP PRON AUX AUX VERB ADP DET PROPN ADP PROPN NOUN ADP NUM , PROPN PROPN PROPN ( PROPN ) NOUN , NOUN CCONJ NOUN NOUN VERB PRON VERB ADP DET PROPN ADP PROPN NOUN ADJ ADP PROPN PROPN PROPN PROPN CCONJ PROPN PROPN PROPN ADP PROPN PROPN .