In its 2015 campaign, UKIP called for the foreign aid budget to be cut. It has also advocated a 40% increase in the UK's national defence budget. It opposes British military involvement in conflicts that are not perceived to be in the national interest, specifically rejecting the concept of regime change wars through humanitarian interventionism. For instance, in 2014 it opposed the Cameron government's plans to intervene militarily against the government of Bashar al-Assad in the Syrian civil war. In 2018, UKIP pledged to work with anti-EU populist group The Movement.