about his campaign finances, because such disclosure was not required. After a media backlash, Kalli gave up his secrecy and listed a group of businessmen known as "Kehittyvien maakuntien Suomi" (KMS; in English, "The Finland of Developing Regions"), who had financed the Centre Party. Centre Party links with KMS were suspected, as one address of the organisation belonged to a party official. It was later revealed that the organisation had been formed in the Centre Party's general secretary's office. After the Russian response to the Georgian invasion of South Ossetia, Vanhanen said that Finland would rethink its security. Vanhanen's cabinet proposed raising the retirement age from 63 to 65 years. His proposal was fiercely opposed by the Central Organisation of Finnish Trade Unions (Finnish acronym SAK), which is affiliated with the SDP. In December 2009, Vanhanen announced that he would step down as chair of the Centre Party at its June 2010 convention. Mari Kiviniemi was chosen to the position and she also inherited the position as Prime Minister. In September 2010 Vanhanen started as the head of the Family Business Network Finland and left the parliament. In 2010, the Finnish police investigated whether Vanhanen had been wrong not to disqualify himself in certain cabinet decisions on financial contributions to an organisation affiliated with the Centre Party, which had previously financed Vanhanen's presidential campaign. Because the charges concerned Vanhanen's actions while in office, the decision whether he should be prosecuted fell to the Constitutional Law Committee of the Finnish Parliament. The Committee decided not to prosecute Vanhanen. Return to politics In November 2014, Vanhanen announced that he would leave the Family Business Network. He was elected to the parliament in the 2015 elections with 11,304 personal votes. In June 2015, Vanhanen was chosen as the chairman of the Centre Party parliamentary group. In March 2016, Vanhanen announced that he is seeking Centre Party's candidacy in 2018 presidential election. As no challengers appeared within the party, Vanhanen was the sole candidate in June's party conference and was confirmed as the Centre Party's candidate in the presidential election. Vanhanen said that his candidacy is motivated by the support he felt he had around the country during his last campaign and the will to improve the security situation in the areas surrounding Finland. Following the nomination, Vanhanen left his duties as the chairman of the parliamentary group in order to focus on global