It would also serve as proof positive that South Vietnamese forces could defend their nation in the face of the continuing Vietnamization withdrawal of U.S . ground combat forces from the theater .
PRON AUX ADV VERB ADP NOUN ADJ SCONJ ADJ ADJ NOUN AUX VERB PRON NOUN ADP DET NOUN ADP DET VERB NOUN NOUN ADP PROPN . NOUN NOUN NOUN ADP DET NOUN .