In general, the first precept has been interpreted by Buddhists as a call for non-violence and pacifism. But there have been some exceptions of people who did not interpret the first precept as an opposition to war. For example, in the twentieth century, some Japanese Zen teachers wrote in support of violence in war, and some of them argued this should be seen as a means to uphold the first precept. There is some debate and controversy surrounding the problem whether a person can commit suicide, such as self-immolation, to reduce other people's suffering in the long run, such as in protest to improve a political situation in a country. Teachers like the Dalai Lama and Shengyan have rejected forms of protest like self-immolation, as well as other acts of self-harming or fasting as forms of protest.