Soon after being reopened, FSB Mary Ann was probed many times (four attempts are recorded between July and August 1970) and one author states that the base could have been easily observed from the high ground surrounding its location. The last major contact in the area was a firefight on 13 August, when Company A, 1/46th Infantry hit and overran "what was probably the NVA command post for the area." After that firefight, organized resistance seemed to cease. That quiet, combined with the usual cycle of replacements at all levels of American units (from individual riflemen to the Company and Battalion commanders), led to what the outgoing Battalion commander called an "awfully complacent" mindset.