In the first few centuries of Christianity, many Christians refused to engage in military combat. In fact, there were a number of famous examples of soldiers who became Christians and refused to engage in combat afterward. They were subsequently executed for their refusal to fight.  The commitment to pacifism and rejection of military service is attributed by Allman and Allman to two principles: "(1) the use of force (violence) was seen as antithetical to Jesus' teachings and service in the Roman military required worship of the emperor as a god which was a form of idolatry." 
Religious traditions help us to find our basic orientations in many aspects of our lives. The most important aspect of our lives is how we interact with others. Among other things, this means religions often have a lot to say about sexual ethics. What sexual ethics does Buddhism promote? In this area our tradition speaks more quietly than others, which can leave newcomers wondering if it addresses the subject at all. In fact it speaks quite firmly. In opening up the subject I'll highlight those questions that bear on the issues raised by various liberation movements - by the women's movement, by gays and lesbians, and by the smaller sexual minorities. I don't think I could be too wide off the mark in saying that all these movements whatever else they are about, are engaging with various forms of prejudice, and with violence and violations based on those prejudices.