The latest development comes a week after the break-up of the long-standing coalition of the two conservative parties. Australia's main opposition political party - a coalition of the Liberals and Nationals - has been revived after the two party leaders agreed to reunite. In announcing the split last week, Littleproud said the Coalition had broken up and reunited in the past, adding that he would work with Ley to "rebuild the relationship to the point we can re-enter a coalition before the next election". Many political observers had expected the Coalition would reunite, Pandanus Petter from the Australian National University's School of Politics and International Relations told the BBC. The last time the Coalition split was almost four decades ago, in 1987.