sentences:  They objected to the army's increasingly corrupt and inefficient leadership, and hoped to reorganise and professionalise the military.Their plan called for the arrest of Phibun, top government officials, and leading army officers during a birthday party for Sarit Thanarat scheduled for 1 October 1948.Although the plotters enjoyed widespread support within the general staff, the Coup Group which had re-installed Phibun received advance notice of their plans.