In a country where surveys of the religious composition at the time estimated the Buddhist majority to be between 70 and 90 percent, President Diem was a member of the Catholic minority, and pursued discriminatory policies favoring Catholics for public service and military promotions, as well as in the allocation of land, business arrangements and tax concessions. Diem once told a high-ranking officer, forgetting that the officer was from a Buddhist family, "Put your Catholic officers in sensitive places. They can be trusted." Many officers in the Army of the Republic of Vietnam converted to Roman Catholicism as their military prospects depended on it. Additionally, the distribution of firearms to village self-defense militias saw weapons given only to Roman Catholics, with some Buddhists in the army being denied promotion if they refused to convert to Roman Catholicism. Some Roman Catholic priests ran their own private armies, and there were forced conversions and looting, shelling, and demolition of pagodas in some areas, to which the government turned a blind eye. Some Buddhist villages converted en masse to receive aid or avoid being forcibly resettled by Diem's regime. The "private" status that was imposed on Buddhism by the French, which required official permission to be obtained by those wishing to conduct public Buddhist activities, was not repealed by Diem. Catholics were also de facto exempt from corvee labor, which the government obliged all citizens to perform, and United States aid was distributed disproportionately to Catholic majority villages by Diem's regime. The Roman Catholic Church was the largest landowner in the country and enjoyed special exemptions in property acquisition, and land owned by the Roman Catholic Church was exempt from land reform. The white and gold Vatican flag was regularly flown at all major public events in South Vietnam, and Diem dedicated his country to the Virgin Mary in 1959. Buddhist discontent erupted following a ban in early May on flying the Buddhist flag in Hue on Vesak, the birthday of Gautama Buddha. Just days before, Catholics had been encouraged to fly the Vatican flag at a celebration for Archbishop Ngo Dinh Thuc of Hue, Diem's elder brother. A large crowd of Buddhists protested the ban, defying the government by flying Buddhist flags on the Buddhist holy day of Vesak and marching on the government broadcasting station. Government forces fired into the crowd of protesters, killing nine people. Diem's refusal to take responsibility -- he blamed the Viet Cong for the deaths -- led to further Buddhist protests and calls for religious equality. As Diem remained unwilling to comply with Buddhist demands, the frequency of protests increased.

Answer this question "Was most of the country also buddhist?" by extracting the answer from the text above.
the religious composition at the time estimated the Buddhist majority to be between 70 and 90 percent,