Self‐censorship, defined as an “act of intentionally and voluntarily withholding information from others in the absence of formal obstacles” often serves as a barrier to resolving intractable conflicts. Specifically, in order to protect the group, and in absence of objective constraints such as institutionalized censorship, individuals practice self‐censorship and support its practice by other society members. This prevents free flow and transparency of information, within a society, regarding the conflict and the adversary. In an attempt to investigate the factors that contribute to the functioning of self‐censorship as a sociopsychological barrier to conflict resolution, a longitudinal study was conducted among a large sample of Jews in Israel. The survey was administered in three waves: a few months before, during, and a few months after Israel's Operation Pillar of Defense in the Gaza Strip. The findings showed that armed confrontation can increase support for self‐censorship. In addition, the findings revealed that personal characteristics (e.g., authoritarianism, ethnocentrism, siege mentality) predicted support for self‐censorship, which, in turn, mediated the effect of personal characteristics on support for negotiations and for providing humanitarian aid. The theoretical as well as the applied implications of the findings are discussed.