Prestige oil spill occurred with big ecological consequences along Spain's Atlantic coastline. In 2003 José María Aznar supported US president George W. Bush in the Iraq War, and a strong movement against war rose in Spanish society. In March 2004 a local Islamist terrorist group inspired by Al-Qaeda carried out the largest terrorist attack in Western European history when they killed 191 people and wounded more than 1,800 others by bombing commuter trains in Madrid. Though initial suspicions focused on the Basque terrorist group ETA, evidence of Islamist involvement soon emerged. Because of the proximity of the 2004 Spanish general election, the issue of responsibility quickly became a political controversy, with the main competing parties PP and PSOE exchanging accusations over the handling of the incident. The PSOE won the election, led by José Luis Rodríguez Zapatero. In the early 2000s, the proportion of Spain's foreign born population increased rapidly during its economic boom but then declined due to the financial crisis. In 2005, the Spanish government legalised same sex marriage, becoming the third country worldwide to do so. Decentralisation was supported with much resistance of Constitutional Court and conservative opposition, so did gender politics like quotas or the law against gender violence. Government talks with ETA happened, and the group announced its permanent cease of violence in 2010. The bursting of the Spanish property bubble in 2008 led to the 2008–16 Spanish financial crisis. High levels of unemployment, cuts in government spending and corruption in Royal family and People's Party served as a backdrop to the 2011–12 Spanish protests. Catalan independentism also rose. In 2011, Mariano Rajoy's conservative People's Party won the election with 44.6% of votes. As prime minister, he implemented austerity measures for EU bailout, the EU Stability and Growth Pact. On 19 June 2014, the monarch, Juan Carlos, abdicated in favour of his son, who became Felipe VI. In October 2017 a Catalan independence referendum was held and the Catalan parliament voted to unilaterally declare independence from Spain to form a Catalan Republic on the day the Spanish Senate was discussing approving direct rule over Catalonia as called for by the Spanish Prime Minister. On the same day the Senate granted the power to impose direct rule and Rajoy dissolved the Catalan parliament and called a new election. No country recognised Catalonia as a separate state. In June 2018, the Congress of Deputies passed a motion