On 8 March, the Spanish sent a relief convoy of 35 ships, protected by the gunboat Carmen, from San Fernando de Apure following the course of the Orinoco.

[3] At 02:00 on 25 April, Piar ordered several columns to attack Angostura, but after four hours of fighting, De la Torre forced them to withdraw with the loss of 7 officers and 78 soldiers.

He relieved Piar of command of the Guyana Army sending him to Upata, and put José Francisco Bermúdez in charge of the forces at Angostura.

[5] Finally, on 17 July, General La Torre ordered the entire population, 1,800 civilians and 2,000 soldiers and sailors, to embark on the brigs, schooners, and barges anchored in the port, with their belongings, valuables and archives and head to the Orinoco delta.

[8] While the Royalists evacuated, Bermúdez's troops occupied Angostura and Bolívar entered the city on 19 July and found only some starving left behind people.

Its possession became essential to link up with José Antonio Páez and attract more llaneros to the Republican cause, and also to conquer Apure and Barinas and advance into the interior of New Granada in 1819.

[11] In Angostura, Bolivar also became the undisputed leader of the Venezuelan independence movement, after he had his only remaining rival, General Manuel Piar, executed on 16 October 1817.