Hey Tousi -- thought I'd chip in.
It's easy to associate terrorism with recent events in world history, but the scope of terrorism is far, far beyond muslim-related ethnicities. Radovan Karazdic, Ratko Mladic, The Malayan Anti-Japanese Peoples' Army and the Chechens come to mind. Here's a list of non-muslim terrorist organizations you'll be interested in:
Source:
http://en.wikipedia.org/wiki/List_o...t_organisations
Christian Terrorist Organizations
* Army of God
* Freedomites (1902-present) Active in Canada, notable for their longevity
* Nagaland Rebels (1947-present) Active in predominantly Christian state in Hindu majority India. Involved in several bombings in 2004. Goal: Independence from India after annexing parts of neighboring Indian states and Burma if it has Christian majority.
* National Liberation Front of Tripura (1989-present) A group that seeks the independence of Tripura from India to create a Christian Tripura.
* Lord's Resistance Army Christian/Pagan terrorist group that operates in northern Uganda, it seeks to overthrow the Ugandan government and create a country based on the ten commandments.
* God's Army A terrorist group in Myanmar.
Hindu Terrorist Organizations
* Shiv Sena: A Hindu militant group, Shiv Sena or "The Army of Shiva". [1]
* Rashtriya Swayamsevak Sangh (RSS) a conservatibe fascist[citation needed] organisation is behind many religous violence in India[citation needed]. Altough these are only allegations. It has confined its activities to be cultural specific.
* Vishwa Hindu Parishad (VHP) an offshoot [2] of Rashtriya Swayamsevak Sangh (RSS). [3]
* Bajrang Dal is the youth wing of the Vishwa Hindu Parishad (VHP). [4]
Jewish Terrorist Organizations
* Kach and Kahane Chai - Israel and United States. Note - organizations are now both defunct.
* Gush Emunim Underground - (1979-1984) Israel. Sometimes called the Jewish Terror Organization, formed by prominent members of Gush Emunim. Their principal terrorist actions were carried out between 1980 and 1984.
* Jewish Defense League - A vigilante group based in the United States. Although several members have been charged or convicted with offenses related to the handling of explosives, the group is not thought to have any current connection to terrorism.
Sikh Terrorist Organizations
* Babbar Khalsa
* Bhinderanwala Tiger Force of Khalistan
* International Sikh Youth Federation [6]
* Khalistan Zindabad Force [7]
* Saheed Khalsa Force
* Khalistan Liberation Force
* Khalistan Commando Force
* Khalistan Liberation Front
* Khalistan National Army
* Dashmesh Regiment
In Japan, there is also the Aum Shinrikyo terrorist organization and they're very homicidal.
Further, terrorism need not be founded on religion. Nationalistic terrorism (see Ireland) and ethnic terrorism (Army for the Liberation of Rwanda -- Remember the Tutsis and the Hutus?) are also complex social and political phenomena.
Also very important to consider, terrorists are not necessarily anti-american. The Rwandan terrorists, for example, probably would rather see a bunch of dead Tutsis before they think of anything else.