I want to know the answer to the following question:
Who was forced to surrender to troops formed by forces of the Banda Oriental?
All the background I'm provided with is that "On 3 February 1807, British troops under the command of General Samuel Auchmuty and Admiral Charles Stirling occupied the city during the Battle of Montevideo (1807), but it was recaptured by the Spanish in the same year on 2 September when John Whitelocke was forced to surrender to troops formed by forces of the Banda Oriental—roughly the same area as modern Uruguay—and of Buenos Aires.". Is that enough to answer the question?
Answer: yes