This chapter demonstrates how the International Committee of the Red Cross (ICRC) faced important hurdles in its early years which threatened its position as a humanitarian broker and locked a certain conservatism inside it. It recounts the history and politics of international debate on the international regulation of armed conflict until 1921. It also discusses proposals regarding humanitarian conduct in internal conflict from 1863 to 1921 and highlights the elements that generate the social pressure that is essential to rule making. The chapter refers to the importance of norm entrepreneurs, who forcefully seize on the creation of new rules, and bring and promote rules in public forums, such as rallying others around a common cause. It describes the norms of sovereignty that prevailed in Europe in the second half of the nineteenth century and militated against the emergence of legal proposals regarding internal conflicts.