By mid-1968, the launched at the beginning of the year, North Vietnamese military commander General Offensive and People’s Army of Vietnam ( ) forces launched a series of coordinated attacks aimed at breaking the stalemate in Vietnam. Giáp believed that the attacks would cause the (AVRN) forces to collapse, fomenting discontent and rebellion among the South Vietnamese population. Giáp also believed the alliance between South Vietnam and the United States was unstable – he hoped the offensive would drive the final wedge between them and convince American leaders to give up their defence of South Vietnam. This included several attacks across the northern I Corps, most importantly at , Da Nang and Quảng Trị City.had escalated into a full-scale conflict. With the
Earlier in the year, from 31 January to 6 February, the Battle for Quảng Trị had raged in the northernmost provincial capital of the Republic of South Vietnam (RVN). After being put on the defensive in the city of Quảng Trị, allied forces regrouped and forced the out of the city after a day of fighting.
While studying, Tâm volunteered for the front in South Vietnam where he was given permission to write and paint from the Khe Sanh battlefield, in, under the qualification of an artist for the .
As the location for two major battles of the, Quảng Trị City was a hotbed of pitched fighting and skirmishes. Usually, shelters would be dug half-underground allowing for easy access with quick exits. However, the shelters noted above by Tâm show a type of shelter dug deeper underground in Quảng Trị. This was most likely in defence against the regular bombing raids conducted by American and ARVN pilots over the . This shelter would have connected to a greater trench system in the area.
In the most southerly province of South Vietnam, Thái Hà recorded life in Khánh Bình Tây Commune (fig. 2).,
Having set up his third Liberty Art class in , Hà continued to sketch and paint daily life in the province’s various communes and villages. Naturally, Hà had ample opportunity to sketch a number of Province (NLF) guerrillas – simple fisherman suddenly thrown into the machinery of war with little else but a rifle and bullets.
In 1968, Hà passed throughinto Cambodia and then back into Vietnam via the border. He held an exhibition in Cambodia before returning to his base in . He once stayed at the consulate of the South Vietnam liberty frontier, where he held an exhibition of paintings from the war. The exhibition was very successful. When seeing photos of the exhibition, President was so pleased he ordered to hold the exhibition again in .