 Their squadron, under the command of Robert McNamara from the East India Company, consisted of "Lord Clive" (60), "Ambuscade" (40), two Portuguese ships (among which were the frigate "Gloria" (38)) transporting 500 infantry, and five storeships.On 2 November, the squadron sailed from Rio de Janeiro towards the mouth of the Río de la Plata but soon abandoned the project because Spanish defenders in both cities were fully alerted and well prepared.On 6 January 1763, McNamara decided to attack and retake Colonia do Sacramento also in Spanish hands.