According to the search results, "jihad" is a term with multiple meanings in Islam, and its exact meaning depends on the context. Historically, the term mainly referred to the struggle for self-improvement, which would be seen as the struggle to strive to follow ones faith. The term can be translated a few ways, loosely meaning "struggle," "striving," or "exerted effort". There are two basic theological understandings of the word: the "Greater Jihad" is the struggle against the lower self, while the "Lesser Jihad" is an outward struggle. Jihad constitutes a moral principle to struggle against any obstacle that stands in the way of the good. It may also involve fighting against oppressors and aggressors who commit injustice, but it is not "holy war" in the way a crusade would be considered a holy war, and while Islam allows and even encourages proselytizing, it forbids forced conversion. The term has old roots in Islam, but since 9/11, it has come to mean a holy war in the eyes of many in the West, conjuring up images of violence and unrest. The former Hamas leader Khaled Meshaal called for a day of protest to support Palestinians during the Israeli war against Hamas, and media outlets have reported it as a call for a "day of jihad".