The British Library blog features several art works made during the Vietnam War era. It also quotes Nguyễn Toan Thi, a guerilla artist during the war:
Art classes were held outside in the forest until our schools were bombed: classes were then held underground. Art teachers and students shared the same trenches. We fought and sketched together, to record spontaneous and realistic images of the battlefield and our life in the forest.
A Vietnamese American once told me that there was little of an art tradition in his homeland. Invasions, starvation and war had all forged Vietnamese into a people of practical necessity, not interested in art. But even in the toughest of times, it seems there were some struggling to keep art alive. I discovered this myself as I traveled throughout Vietnam photo shooting for my book, http://www.Vietnam40YearsLater.com. For a look at today’s Vietnam 40 Years after the war, checkout my book!