Mohammed Emwazi (born Muhammad Jassim Abdulkarim Olayan al-Dhafiri; Arabic: محمد جاسم عبد الكريم عليان الظفيري‎ ‎ ; 17 August 1988 – 12 November 2015) was a British Arab believed to be the person seen in several videos produced by the Islamic extremist group ISIL showing the beheadings of a number of captives in 2014 and 2015.
 A group of his hostages nicknamed him "John" since he was part of a four-person terrorist cell with English accents whom they called "The Beatles"; the press later began calling him "Jihadi John".
Vikar Ahmed also known as Vikaruddin is an activist of the Darsgah Jihad-o-Shahadath, an affiliate of the Islamic extremist group Students Islamic Movement of India and also linked to Harkat-ul-Jihad al-Islami.
 He is a suspect in the Mecca Masjid bombing.
 He was absconding from Andhra Pradesh police but was caught in July 2010.
 He was involved in deadly attacks on Hyderabad police in both 2008 and 2010.
 Vikaruddin along with four other suspected SIMI activists were killed in an encounter near Alair in Nalgonda district of Telangana on April 7, 2015 while on their way to Hyderabad Court from Warangal Jail.
 The five men were killed when one of them attempted to overpower the security personnel escorting them and snatch a weapon in a bid to escape.
Tareq Kamleh is an Australian medical doctor who travelled to Syria to join Islamic extremist group ISIL to work as a paediatrician.
 He first came to media attention in 2015 when he appeared in an Islamic State recruitment video in which he encouraged other doctors to join the cause.
 The video, originally titled ""Health services in the Islamic state // mandate of tenderness"," shows Kamleh speaking to the camera in an "Islamic State Health Service"-run maternity ward in Raqqa.
The Islamic Thinkers Society (abbreviated ITS) is an Islamist group based in New York City that seeks the goal of restoring the Islamic Caliphate to create what it calls "an ideal Islamic society."
 Its members are located mainly in Jackson Heights, Queens, New York City, United States.
 The ITS is an offshoot of Al-Muhajiroun, a pro Al-Qaeda British Islamic extremist group.
Dima Halam Daogah was an Indian extremist group operating mainly in Assam and Nagaland.
 The group laid down their arms on 1 January 2013, and claimed to represent the Dimasa and their goal to create a Dimaland or "Dimaraji" in the two states.
Muslim Atayev (1974 – January 27, 2005), also known as Emir Sayfullah, was the founder of the extremist group Yarmuk Jamaat, which later became part of the Caucasus Front<nowiki>'s</nowiki> Kabardino-Balkarian Sector in the Russian-held Caucasian Muslim state Kabardino-Balkaria of the Second Chechen War.
 Atayev was an ethnic Balkar and started his military career as a volunteer fighting in Chechnya.
Boko Haram, referred to by themselves as al-Wilāya al-Islāmiyya Gharb Afrīqiyyah (Arabic: الولاية الإسلامية غرب أفريقيا‎ ‎ , (Islamic State West Africa Province, "ISWAP") and Jamā'at Ahl as-Sunnah lid-Da'wah wa'l-Jihād (Arabic: جماعة أهل السنة للدعوة والجهاد‎ ‎ , "Group of the People of Sunnah for Preaching and Jihad"), is an Islamic extremist terrorist group based in northeastern Nigeria, also active in Chad, Niger and northern Cameroon.
 The group was led by Abubakar Shekau until August 2016, when he was succeeded by Abu Musab al-Barnawi.
 The group had alleged links to al-Qaeda, but in March 2015, it announced its allegiance to the Islamic State of Iraq and the Levant (ISIL).
 Since the current insurgency started in 2009, it has killed tens of thousands and displaced 2.3 million from their homes and was ranked as the world's deadliest terror group by the Global Terrorism Index in 2015.
The January 2015 Kolofata raid was an unsuccessful assault on a Cameroonian military base at Kolofata, Far North Region, perpetrated by Boko Haram.
 The incident occurred on 12 January 2015 coming shortly after another Boko Haram incursion onto Cameroonian soil.
The 2015 Chad suicide bombings were a suicide attack which occurred the afternoon of Saturday 10, October 2015 in the town of Baga Sola, Chad a small fishing community on Lake Chad.
 The attack is thought to have been perpetrated by the Islamic extremist group Boko Haram and resulted in the deaths of around 36 individuals, and wounding upwards of 50 more.
 The attacks were reportedly carried out by 3 women and 2 children with primary targets being a busy marketplace, as well as a nearby refugee camp hosting upwards of 7149 refugees.
Boot Boys were a Neo-Nazi extremist group from Bøler, a suburb of Oslo, with connections to individuals in Bergen and Kristiansand.
 The group consisted of about 50 members, considered the most violent Neo-Nazis in Norway.
 They were founded in the mid-90s and were active for many years.
 When the Neo-Nazi environment in Bøler was at its strongest in autumn 2000, it consisted of a core of 10-12 uniformed young men who controlled a small area in the community of Bøler.
 They marched in the streets, painted swastikas on school walls, drank beer on the ridge behind the center and claimed the lake Nøklevann in the evenings.
 Around them they had a small legion of recruiting teens.
 The district spoke nearly around 50 in this grey zone before outreach, police and parents started a joint clean-up in November 2000.
 Daniel de Linde was one of the groups known members.
 Other members included Joe Erling Jahr and Ole Nicolai Kvisler, who was convicted of the murder of Benjamin Hermansen on 26 January 2001.

Question: The January 2015 Kolofata raid was perpetrated by the extremist group based in what country?
Answer: Nigeria