The Jyllands-Posten Muhammad cartoons controversy (or Muhammad cartoons crisis) (Danish: Muhammedkrisen) began after the Danish newspaper Jyllands-Posten published 12 editorial cartoons on 30 September 2005, most of which depicted Muhammad, the principal figure of the religion of Islam. The newspaper announced that this was an attempt to contribute to the debate about criticism of Islam and self-censorship. Muslim groups in Denmark complained, and the issue eventually led to protests around the world, including violent demonstrations and riots in some Muslim countries.
Islam has a strong tradition of aniconism, and it is considered highly blasphemous in most Islamic traditions to visually depict Muhammad. This, compounded with a sense that the cartoons insulted Muhammad and Islam, offended many Muslims. Danish Muslim organisations that objected to the depictions responded by petitioning the embassies of Islamic countries and the Danish government to take action in response, and filed a judicial complaint against the newspaper, which was dismissed in January 2006. After the Danish government refused to meet with diplomatic representatives of the Muslim countries and would not intervene in the case, a number of Danish imams visited the Middle East in late 2005 to raise awareness of the issue. They presented a dossier containing the twelve cartoons from the Jyllands-Posten, and other information some of which was found to be falsified.
As a result, the issue received prominent media attention in some Muslim countries, leading to protests across the world in late January and early February 2006. Some escalated into violence resulting in more than 200 reported deaths, attacks on Danish and other European diplomatic missions, attacks on churches and Christians, and a major international boycott. Some groups responded to the outpouring of protest by endorsing the Danish policies, launching "Buy Danish" campaigns and other displays of support. The cartoons were reprinted in newspapers around the world both in a sense of journalistic solidarity and as an illustration in what became a major news story.
Danish Prime Minister Anders Fogh Rasmussen described the controversy as Denmark's worst international relations incident since the Second World War. The incident came at a time of heightened political and social tensions between Muslim majority countries and Western countries, following several, high-profile Islamic terrorist attacks in the West—including the September 11 attacks—and Western military interventions in Muslim countries, such as Iraq and Afghanistan. The cartoons and the reaction to them aggravated already-strained relations. The relationship between Muslims in Denmark and the broader society was similarly at a low-point, and the conflict came to symbolise the misunderstandings between the Islamic community and the rest of society. In the years since, terrorist plots claiming to be in retaliation for the cartoons have been planned, and some executed, against targets affiliated with newspapers that published the cartoons or Denmark.