IN the province of Popayan, Colonels J. M. Obando and J. H. Lopez rose with their troops and declared war on Bolivar. This was a serious menace, for the colonels were very able officers, and the district of Popayan was mountainous and well adapted for guerrilla warfare. Against these rebels Bolivar despatched General Flores, who succeeded in defeating them and pursued them as far as the Peruvian frontier.
Peru welcomed the rebels, espoused their cause, imprisoned a Colombian Minister, occupied two provinces, sent an ambassador to Bogotá, and refused to pay the sums due from the Government at Lima for the expenses of the Colombian intervention in 1823.
On July 3d, Bolivar declared war on Peru.
Marshal Lamar replied to him by proclaiming a blockade of the Colombian ports on the Pacific coast. A Peruvian squadron, comprising a frigate, a corvette, and three brigs, bombarded Guayaquil, broke the boom, burned the fort at Cruces, and destroyed several fishing boats. At the same time Lamar invaded Colombia with nine thousand men. Sucre marched to meet him and defeated him several times.
Obando and Lopez had resumed hostilities. Bolivar sent Cordoba and Heres against them, promising an amnesty if they would lay down their arms at once.