By: ROBERT H. REID, The Associated Press

Muslim anger over perceived Western insults to Islam has exploded several times, most recently in Tuesday's attacks against U.S. diplomatic posts in the Middle East in which U.S. ambassador to Libya Chris Stevens and three other Americans were killed.

The violence, fueled mostly by religious zealots, reflects the tension between Muslims and the secular West that followed the wars in Afghanistan and Iraq.

Here are some of the most serious incidents (Captions by the Associated Press):

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  • Muhammad Cartoons

    The September 2005 publication by the Danish newspaper Jyllands-Posten of cartoons depicting the Prophet Muhammad unleashed a wave of violent protests by Muslims, who believe any image of their religion's founder is forbidden. Dozens of people were killed in weeks of protests that included violent attacks against Danish missions in Syria, Iran, Afghanistan and Lebanon. At least six people were killed in a June 2008 suicide bombing at the Danish embassy in the Pakistani capital, Islamabad. Al-Qaida claimed responsibility, citing anger over the cartoons. The Danish government described the Muslim backlash as the country's worst international crisis since World War II.<br> <em>Caption: Pakistani Muslim men march during a demonstration in Karachi on May 18, 2008, to protest against Danish cartoons of the Prophet Mohammed (Peace be upon him). (RIZWAN TABASSUM/AFP/Getty Images)</em>

  • Satanic Verses

    British author Salman Rushdie's 1988 novel, "Satanic Verses," inspired in part by the life of Muhammad, won kudos from critics in Britain but prompted outrage among many Muslims, who considered it slanderous. Deadly riots against the book erupted in Islamabad, Pakistan and Mumbai, India, and the book was banned in South Africa, India, Pakistan, Bangladesh and several other countries. Iran's Ayatollah Ruhollah Khomeini issued a religious edict in 1989 calling for Rushdie's death, leading the writer to live in hiding for a decade. Although Rushdie was never physically harmed, his Japanese translator was stabbed to death in 1991 and his Italian translator was injured in a stabbing that same year. <br> <em>Caption: In this Saturday, March 17, 2012, handout photo, Indian-born author Salman Rushdie speaks at a conference in New Delhi, India. The controversial author of "The Satanic Verses" was forced to skip a literature fest in Jaipur owing to protests from a section of Muslims due to the alleged blasphemous content in his 1988 novel. (AP Photo/India Today Conclave)</em>

  • Van Gogh Assassination

    Dutch filmmaker Theo van Gogh, an outspoken critic of Islam whose film "Submission" criticized the treatment of Muslim women, was shot dead in November 2004 as he bicycled in the capital of the Netherlands, Amsterdam. A 26-year-old Dutch citizen of Moroccan origin, Mohammed Bouyeri, was convicted of the murder and sentenced to life imprisonment. Van Gogh's assassination set off a wave of more than 170 small reprisal attacks against mosques and churches over the following weeks, according to a report by the Anne Frank Foundation and the University of Leiden.<br> <em>Caption: Portrait of controversial Dutch filmmaker Theo van Gogh (47) is seen in this undated file photo. Theo van Gogh was shot and stabbed to death on November 2, 2004, in Amsterdam. (Photo by BrunoPresse/Getty Images)</em>

  • 'Burn A Quran Day'

    A 2010 call by Florida preacher Terry Jones to burn Qurans on the ninth anniversary of 9/11 alarmed the U.S. military, which feared the move would endanger the lives of American troops fighting Islamist extremists in Afghanistan and Iraq. Although Jones called off the burning, thousands of Afghans encouraged by the Taliban set fire to tires in the streets of the Afghan capital, Kabul, and other cities and chanted "Death to America." Police in a province near Kabul fired shots in the air to disperse a crowd trying to storm the governor's residence. Jones' congregation went ahead with a Quran burning in March 2011, triggering protests across Afghanistan after video of the ceremony was posted on the Internet. In the most violent protest, hundreds of protesters stormed a U.N. compound in Mazar-i-Sharif in northern Afghanistan, killing seven foreigners, including four Nepalese guards. <br><em>Caption: Pastor Terry Jones is escorted by Port Authority police officers as he leaves Laguardia airport, Friday, Sept. 10, 2010, in New York. (AP Photo/Mary Altaffer)</em>

  • More Quran Burning

    In February, U.S. soldiers at Bagram prison in Afghanistan burned 315 copies of the Qurans and other religious materials that had been taken from Bagram's facility library for disposal. Word of the burning, which the U.S. said was unintentional, triggered scores of anti-American protests across the country which left more than 30 Afghans and six U.S. soldiers dead. They included two U.S. troops who were shot by an Afghan soldier and two U.S. military advisers who were gunned down at their desks at the Afghan Interior Ministry. Six U.S. Army soldiers received unspecified administrative punishment for the burning, the Pentagon announced last month. <br><em>Caption: Afghan youth throw stones toward US soldiers standing at the gate of Bagram airbase during a protest against Koran desecration on February 21, 2012, at Bagram, about 60 kilometres (40 miles) north of Kabul. (SHAH MARAI/AFP/Getty Images)</em>