 These men and their entourage became known as the Oujda group, forming a powerful pro-Boumédiène faction within the political and military ranks of the one-party state, but in their turn dependent on him for their positions.After rising tension between the two men and their supporters, Ben Bella in 1965 confronted Boumédiène by attempting to dismiss his close associate, foreign minister Abdelaziz Bouteflika, and by announcing that he soon would be reassigning responsibilities within the army.Boumédiène reacted by staging a military coup d'état, in which Ben Bella was "disappeared" (years later, he was released after having been held isolated in house arrest), and taking personal control over the country by means of a military junta.