paragraph_text: The Oklahoma City bombing was a domestic terrorist truck bombing on the Alfred P. Murrah Federal Building in downtown Oklahoma City, Oklahoma, United States on April 19, 1995. Perpetrated by Timothy McVeigh and Terry Nichols, the bombing happened at 9: 02am and killed at least 168 people, injured more than 680 others, and destroyed one - third of the building. The blast destroyed or damaged 324 other buildings within a 16 - block radius, shattered glass in 258 nearby buildings, and destroyed or burned 86 cars, causing an estimated $652 million worth of damage. Extensive rescue efforts were undertaken by local, state, federal, and worldwide agencies in the wake of the bombing, and substantial donations were received from across the country. The Federal Emergency Management Agency (FEMA) activated 11 of its Urban Search and Rescue Task Forces, consisting of 665 rescue workers who assisted in rescue and recovery operations. Until the September 11 attacks in 2001, the Oklahoma City bombing was the deadliest terrorist attack in the history of the United States, and remains the deadliest incident of domestic terrorism in the country's history.

paragraph_text: The March 2012 Damascus bombings were two large car bombs that exploded in front of the air intelligence and criminal security headquarters in the Syrian capital of Damascus. At least 27 people were reported killed and over a 140 injured in the fourth major bombing since the beginning of the uprising and the second in the city. As in previous cases, the opposition blamed the government for orchestrating attacks, while the government placed the blame on terrorists and foreign groups.

paragraph_text: On 16 September 2001, at Camp David, President George W. Bush used the phrase war on terrorism in an unscripted and controversial comment when he said, "This crusade – this war on terrorism – is going to take a while, ... " Bush later apologized for this remark due to the negative connotations the term crusade has to people, e.g. of Muslim faith. The word crusade was not used again. On 20 September 2001, during a televised address to a joint session of congress, Bush stated that, "(o)ur 'war on terror' begins with al-Qaeda, but it does not end there. It will not end until every terrorist group of global reach has been found, stopped, and defeated."

paragraph_text: Journalist Yosri Fouda of the Arabic television channel Al Jazeera reported that in April 2002 Khalid Sheikh Mohammed admitted his involvement in the attacks, along with Ramzi bin al-Shibh. The 9/11 Commission Report determined that the animosity towards the United States felt by Mohammed, the principal architect of the 9/11 attacks, stemmed from his "violent disagreement with U.S. foreign policy favoring Israel". Mohammed was also an adviser and financier of the 1993 World Trade Center bombing and the uncle of Ramzi Yousef, the lead bomber in that attack.Mohammed was arrested on March 1, 2003, in Rawalpindi, Pakistan, by Pakistani security officials working with the CIA. He was then held at multiple CIA secret prisons and Guantanamo Bay where he was interrogated and tortured with methods including waterboarding. During U.S. hearings at Guantanamo Bay in March 2007, Mohammed again confessed his responsibility for the attacks, stating he "was responsible for the 9/11 operation from A to Z" and that his statement was not made under duress.

paragraph_text: The Matzuva attack was a terrorist attack on March 12, 2002 in which two Islamic Jihad militants who infiltrated Israel from Lebanon opened fire on civilian vehicles traveling on the Shlomi-Matzuva road. Six Israelis were killed in the attack and one injured.

paragraph_text: The government of Pakistan reacted in the same vein, through its Foreign Minister Khurshid Mahmud Kasuri, proclaiming that this was an act of terrorism that should be investigated by Indian authorities. Kasuri said that the terrorist attack would not halt his trip to India, as he "will be leaving tomorrow for Delhi to further the peace process." He went on to say that "we should hasten the peace process." In response to the terrorist attack, President Pervez Musharraf stated "such wanton acts of terrorism will only serve to further strengthen our resolve to attain the mutually desired objective of sustainable peace between the two countries." Musharraf also said that there must be a full Indian investigation of the attack. In regards to the upcoming peace talks, he stated "we will not allow elements which want to sabotage the ongoing peace process to succeed in their nefarious designs."

paragraph_text: In January 2002, the U.S. sent more than 1,200 troops (later raised to 2,000) to assist the Armed Forces of the Philippines in combating terrorist groups linked to al-Qaida, such as Abu Sayyaf, under Operation Enduring Freedom - Philippines. Operations have taken place mostly in the Sulu Archipelago, where terrorists and other groups are active. The majority of troops provide logistics. However, there are special forces troops that are training and assisting in combat operations against the terrorist groups.

paragraph_text: The Attack on Prekaz, also known as the Prekaz massacre, was an operation led by the Special Anti-Terrorism Unit of Serbia on 5 March 1998, to capture Kosovo Liberation Army (KLA) fighters deemed terrorists by Serbia. During the operation, KLA leader Adem Jashari and his brother Hamëz were killed, along with nearly 60 other family members. The attack was criticized by Amnesty International, which wrote in its report that: "all evidence suggests that the attack was not intended to apprehend armed Albanians, but 'to eliminate the suspects and their families.'" Serbia, on the other hand, claimed the raid was due to KLA attacks on police outposts.

paragraph_text: The official investigation concluded that it was organized by the same group as the February 2004 Moscow metro bombing, as well as two previous terrorist attacks on bus stops in Voronezh, southern Russia, in 2004. The deaths included the bomber and her accomplice, Nikolay Kipkeev (Kipkeyev), the head of an Islamic militant group Karachay Jamaat from the republic of Karachay–Cherkessia, as the bomb apparently exploded prematurely while the two were standing in the entrance hall of the metro station.

paragraph_text: The War on Terrorism is a global effort by the governments of several countries (primarily the United States and its principal allies) to neutralize international terrorist groups (primarily Islamic Extremist terrorist groups, including al-Qaeda) and ensure that countries considered by the US and some of its allies to be Rogue Nations no longer support terrorist activities. It has been adopted primarily as a response to the September 11, 2001 attacks on the United States. Since 2001, terrorist motivated attacks upon service members have occurred in Arkansas and Texas.

paragraph_text: On 7 January 2015, two French Muslim extremists attacked the Paris headquarters of Charlie Hebdo and killed thirteen people, and on 9 January, a third terrorist killed four hostages during an attack at a Jewish grocery store at Porte de Vincennes. On 11 January an estimated 1.5 million people marched in Paris–along with international political leaders–to show solidarity against terrorism and in defence of freedom of speech. Ten months later, 13 November 2015, came a series of coordinated terrorist attacks in Paris and Saint-Denis claimed by the 'Islamic state' organisation ISIL ('Daesh', ISIS); 130 people were killed by gunfire and bombs, and more than 350 were injured. Seven of the attackers killed themselves and others by setting off their explosive vests. On the morning of 18 November three suspected terrorists, including alleged planner of the attacks Abdelhamid Abaaoud, were killed in a shootout with police in the Paris suburb of Saint-Denis. President Hollande declared France to be in a three-month state of emergency.

paragraph_text: Rethink Afghanistan is a 2009 documentary by Robert Greenwald and Brave New Films, about the US military presence in Afghanistan following the terrorist attacks of September 11, 2001.

paragraph_text: The Obama administration began to reengage in Iraq with a series of airstrikes aimed at ISIS beginning on 10 August 2014. On 9 September 2014 President Obama said that he had the authority he needed to take action to destroy the militant group known as the Islamic State of Iraq and the Levant, citing the 2001 Authorization for Use of Military Force Against Terrorists, and thus did not require additional approval from Congress. The following day on 10 September 2014 President Barack Obama made a televised speech about ISIL, which he stated "Our objective is clear: We will degrade, and ultimately destroy, ISIL through a comprehensive and sustained counter-terrorism strategy". Obama has authorized the deployment of additional U.S. Forces into Iraq, as well as authorizing direct military operations against ISIL within Syria. On the night of 21/22 September the United States, Saudi Arabia, Bahrain, the UAE, Jordan and Qatar started air attacks against ISIS in Syria.[citation needed]

paragraph_text: HT does not engage in armed jihad or work for a democratic system, but works to take power through "ideological struggle" to change Muslim public opinion, and in particular through elites who will "facilitate" a "change of the government," i.e., launch a "bloodless" coup. It allegedly attempted and failed such coups in 1968 and 1969 in Jordan, and in 1974 in Egypt, and is now banned in both countries. But many HT members have gone on to join terrorist groups and many jihadi terrorists have cited HT as their key influence.

paragraph_text: Canada (/ ˈkænədə / (listen); French: (kanadɑ)) is a country in the northern part of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering 9.98 million square kilometres (3.85 million square miles), making it the world's second - largest country by total area and the fourth - largest country by land area. Canada's southern border with the United States is the world's longest bi-national land border. The majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its land territory being dominated by forest and tundra and the Rocky Mountains. It is highly urbanized with 82 per cent of the 35.15 million people concentrated in large and medium - sized cities, many near the southern border. Its capital is Ottawa, and its five largest metropolitan areas are Toronto, Montreal, Vancouver, Calgary and Ottawa.

paragraph_text: Philippe Lançon () is a journalist working for the French satirical weekly newspaper "Charlie Hebdo", who was wounded in the terrorist attack perpetrated against that publication on 7 January 2015.

paragraph_text: The 2017 Manchester Arena bombing was an Islamic terrorist attack in Manchester, United Kingdom. On 22 May 2017 a shrapnel - laden homemade bomb was detonated as people were leaving Manchester Arena following a concert by the American singer Ariana Grande. Twenty - three people were killed, including the attacker, and 250 were injured.

paragraph_text: The September 11 attacks (also referred to as 9 / 11) were a series of four coordinated terrorist attacks by the Islamic terrorist group al - Qaeda on the United States on the morning of Tuesday, September 11, 2001. The attacks killed 2,996 people, injured over 6,000 others, and caused at least $10 billion in infrastructure and property damage.

paragraph_text: Other critics, such as Francis Fukuyama, note that "terrorism" is not an enemy, but a tactic; calling it a "war on terror", obscures differences between conflicts such as anti-occupation insurgents and international mujahideen. With a military presence in Iraq and Afghanistan and its associated collateral damage Shirley Williams maintains this increases resentment and terrorist threats against the West. There is also perceived U.S. hypocrisy, media-induced hysteria, and that differences in foreign and security policy have damaged America's image in most of the world.

paragraph_text: These attacks resonated with conservative Muslims and the problem did not go away with Saddam's defeat either, since American troops remained stationed in the kingdom, and a de facto cooperation with the Palestinian-Israeli peace process developed. Saudi Arabia attempted to compensate for its loss of prestige among these groups by repressing those domestic Islamists who attacked it (bin Laden being a prime example), and increasing aid to Islamic groups (Islamist madrassas around the world and even aiding some violent Islamist groups) that did not, but its pre-war influence on behalf of moderation was greatly reduced. One result of this was a campaign of attacks on government officials and tourists in Egypt, a bloody civil war in Algeria and Osama bin Laden's terror attacks climaxing in the 9/11 attack.

Question: what is the biggest terrorist attacks by the Islamic terrorist group that started 'war on terror' according to Bush against the southern neighbor of Canada?
Answer: the 9/11 attacks