After a falling out with the Military Committee, of which he was a member, Muhammad Umran told Aflaq about the committee's secret plans to oust the civilian leadership, led by Aflaq, and take over the Ba'ath Party. Shortly after, Umran was sent into exile as Ambassador to Spain for supporting the Aflaq faction. Aflaq responded to the threat posed to his leadership by invoking his office as Secretary General, and calling for the National Command to dissolve the Regional Command. He was forced to withdraw his request, when the majority of Ba'ath Party members proved to oppose such a move. A contest for power, between Aflaq and the Military Committee, ensued in the open; but it was a struggle Aflaq was losing. It was plain from the very beginning that the initiative lay with the anti-Aflaq forces. To counter the military threat, Aflaq invoked party rules and regulations against them. To counter this, the Military Committee befriended a staunchly anti-Aflaq civilian faction calling themselves the "Regionalists" – this group had not dissolved their party organisations as ordered by Aflaq in the 1950s.