The aim of this article is to analyze political objectives and repercussions of the dissolutions of the House of Representatives by Prime Ministers Koizumi Jun’ichirō in 2005 and Abe Shinzō in 2014. In both cases dissolutions took place less than two years after the previous elections. The paper argues that the strengthened power of the heads of government after electoral and administrative reforms facilitated them to take advantage of Diet dissolution to overcome opposition by veto players. By appealing to the public Koizumi planned to privatize the Japan Post and Abe intended to postpone the consumption tax hike. In both cases the prime ministers used early elections to enhance their position in the ruling party. As a result, Koizumi managed to overcome pressure from postal employees and Abe gained leverage over Ministry of Finance (MOF) bureaucrats.