On 27 September, a large batch of reservists were given orders for mobilization. To lull suspicion, the Cabinet Ministers of the Egyptian Government were invited to an open tour of General Headquarters, where all planning and coordination of the operation took place. Another batch of reservists were called up on September 30. To quell suspicion once more, the Egyptians publicly announced on 4 October the demobilization of the reservists who had been called up on 27 September, but only demobilized 20,000 men.