Terrorism is, in the broadest sense, the use of intentional violence for political or religious purposes.
It is used in this regard primarily to refer to violence during peacetime or in the context of war against non-combatants (mostly civilians and neutral military personnel ).
The terms "terrorist" and "terrorism" originated during the French Revolution of the late 18th century but gained mainstream popularity in the 1970s during the conflicts of Northern Ireland, the Basque Country, and Palestine.
In order to attract and maintain the publicity necessary to generate widespread fear, terrorists must engage in increasingly dramatic, violent, and high-profile attacks.
These have included hijackings, hostage takings, kidnappings, mass shootings, car bombings, and, frequent suicide bombings.
The increased use of suicide attacks from the 1980s onwards was typified by the September 11 attacks in New York City and Washington, D.C. in 2001.
Below are the top 5 most deadly terrorist sects:
1. Islamic State of Iraq and the Levant / Syria (ISIL / ISIS)
The Islamic State of Iraq and Syria was formed by Abu Bakr al-Baghdadi, which has grown to 80,000 militants and counting.
Although the terrorists occupy large parts of the Middle East including portions of Iraq, Syria, and Palestine, they have affiliate groups all over the world including in Southeast Asia, Nigeria, and Libya. They even have some members in western countries.
As an extreme Sunni Jihadist organization, ISIS claims to have control over Muslims worldwide including authority over political, religious, and military groups. Abuse from these savages has occurred all over the globe.
ISIS is especially notorious for creating slave markets where they trade captured women. Such crimes have already happened to the Yazidi Kurdish sect after ISIS murdered their children.
Al-Qaeda as a sect, has the objective to unite Muslims everywhere through Jihad and strict interpretation of the Sharia law.
Al-Qaeda has been one of the biggest terrorist groups in the world, for nearly 30 years. Osama bin Laden created the extremist organization in 1988. It is responsible for the 1993 World Trade Center bombing, the 1998 U.S. embassy bombings in Africa, and the 2002 Bali bombings.
Osama bin Laden mostly famously carried out the 9/11 attacks in New York City, Washington, and Pennsylvania which killed over 3,000 Americans.
As a result, the United States invaded Afghanistan. Ayman al-Zawahiri soon became the leader of Al-Qaeda after Osama bin Laden was captured and killed in Pakistan in May 2011.
Mullah Mohammed Omar formed the Taliban in 1994. It originated as a result of the Afghani struggle against the Soviets.
It is such an aggressive terrorist organization that it was in charge of an entire country.
From 1996 until 2001, the Taliban’s militant group enforced strict Islamic laws in Afghanistan until the United States military invaded the country.
The Taliban makes money via human and drug trafficking. The terrorists are known murderers and they kill innocent people in the name of Jihad, including over 130 high school teachers and students in northern Pakistan.
The Taliban regularly practices heinous crimes such as ethnic cleansing. Like other groups, the Taliban received support from Al-Qaeda.
This East-African terrorist group was founded in 2006 with a stated mission to eliminate foreign military forces in Somalia.
In order to help form their Islamic government, the organization earns funding from ransoms, piracy, illegal trade, and other criminal actions.
Al-Shabaab operates throughout Somalia, Kenya, and Uganda, and they regularly carry out deadly car attacks and suicide bombings.
In 2013, over 60 people died as a result of the Westgate Mall attack in Kenya.
5. Boko Haram
The name Boko Haram itself translates to "Western education is a sin." Mohammed Yusuf the founder of the sect passionately despises western education.
He even discredits the Earth being round because he claims it is a western concept.
This notorious West African terrorist group is a branch of the Islamic State of Iraq and the Levant and Syria (ISIL / ISIS), and has close ties with Al-Qaeda.
By some accounts, the word ‘Western’ may also be changed with ‘non-Islamic.’
Boko Haram has been active in Nigeria since 2009. After Nigeria had begun to accept different cultures, the terrorists wanted to impose Islamic laws throughout the entire country.
They even attempted to overthrow the government by imposing Sharia law, which have zero tolerance for any outside behaviors, including drinking alcohol.
In 2011, Boko Haram took responsibility for bombing the United Nations headquarters in Abuja, Nigeria.
Just three years later, the terrorist group gained international attention when they kidnapped over 200 Nigerian schoolgirls.
Countries all over the globe recognized their brutal terror, and a massive social media campaign demanded the return of the children, many of whom were already married-off with children.