page_title: Tet Offensive
section_title: Before the offensive
hierarchical_section_title: Tet Offensive / Background / U.S. unpreparedness / Before the offensive
caption_attribution_description: English: Military Regions in South Vietnam, 1966-67
context_page_description: The Tet Offensive, or officially called The General Offensive and Uprising of Tet Mau Than 1968 was a major escalation and one of the largest military campaigns of the Vietnam War. It was launched on January 30, 1968 by forces of the Viet Cong and North Vietnamese People's Army of Vietnam against the forces of the South Vietnamese Army of the Republic of Vietnam, the United States Armed Forces and their allies. It was a campaign of surprise attacks against military and civilian command and control centers throughout South Vietnam. The name of the offensive comes from the Tết holiday, the Vietnamese New Year, when the first major attacks took place.
  The offensive was launched prematurely in the late night hours of 30 January in the I and II Corps Tactical Zones of South Vietnam. This early attack allowed allied forces some time to prepare defensive measures. When the main operation began the next morning, the offensive was countrywide and well coordinated; eventually more than 80,000 PAVN/VC troops struck more than 100 towns and cities, including 36 of 44 provincial capitals, five of the six autonomous cities, 72 of 245 district towns, and the southern capital.
context_section_description: By the beginning of January 1968, the U.S. had deployed 331,098 Army personnel and 78,013 Marines in nine divisions, an armoured cavalry regiment, and two separate brigades to South Vietnam. They were joined there by the 1st Australian Task Force, a Royal Thai Army regiment, two South Korean Army infantry divisions, and the Republic of Korea Marine Corps brigade. South Vietnamese strength totaled 350,000 regulars in the Army, Air Force, Navy and Marine Corps. They were in turn supported by the 151,000-man South Vietnamese Regional Forces and 149,000-man South Vietnamese Popular Forces, which were the equivalent of regional and local militias.
  In the days immediately preceding the offensive, the preparedness of allied forces was relatively relaxed. Hanoi had announced in October that it would observe a seven-day truce from 27 January to 3 February for the Tet holiday, and the South Vietnamese military made plans to allow recreational leave for approximately half of its forces. General Westmoreland, who had already cancelled the truce in I Corps, requested that South Vietnam cancel the upcoming cease-fire, but President Thiệu (who had already reduced the cease-fire to 36 hours), refused to do so, claiming that it would damage troop morale and only benefit communist propagandists.
  On 28 January, eleven VC cadres were captured in the city of Qui Nhơn while in possession of two pre-recorded audio tapes whose message appealed to the populace in "already occupied Saigon, Huế, and Da Nang". The following afternoon, General Cao Văn Viên, chief of the South Vietnamese Joint General Staff, ordered his four Corps' commanders to place their troops on alert. Yet, there was still a lack of a sense of urgency on the part of the allies. If Westmoreland had a grasp of the potential for danger, he did not communicate it very well to others. On the evening of 30 January, 200 U.S. officers—all of whom served on the MACV intelligence staff—attended a pool party at their quarters in Saigon. According to James Meecham, an analyst at the Combined Intelligence Center who attended the party: "I had no conception Tet was coming, absolutely zero ... Of the 200-odd officers present, not one I talked to knew Tet was coming, without exception."
  Westmoreland also failed to communicate his concerns adequately to Washington. Although he had warned the President between 25 and 30 January that "widespread" communist attacks were in the offing, his admonitions had tended to be so oblique or so hedged with official optimism that even the administration was unprepared. No one – in either Washington or Vietnam – was expecting what happened.
  Lt. Gen. Weyand invited CBS News Correspondent John Laurence and Washington Post reporter Don Oberdorfer to his III Corps headquarters in the week before the Tet Offensive to alert them that a major enemy attack was coming "just before or just after Tet." He said the Vietnamese had too much respect for the holiday to attack during Tet itself. Weyand said he had moved 30 U.S. and South Vietnamese battalions closer to Saigon to defend the city.
caption: South Vietnam, Corps Tactical Zones
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