This document provides historical background on Vietnam from the 1800s through the early 1960s. It summarizes that Vietnam had been fighting for independence for centuries, including asking the US for help against the French in the 1860s and 1910s. It then covers the US involvement in Vietnam through the presidencies of Truman, Eisenhower, Kennedy, including the rise of Diem, the French defeat at Dien Bien Phu, and the quiet escalation of US advisors and involvement despite doubts about whether the US could win.