On September 2 , 1846 the Cyane captured two Mexican vessels in the harbor then a landing party spiked 34 cannons in the port of San Blas .
Stockton intended to seize Acapulco , and use it as a base for a joint Army - Navy expedition into Mexico .
On September 2 , 1846 the Cyane captured two Mexico vessels in the harbor then a landing party spiked 34 cannons in the port of San Blas .
Stockton intended to seize Acapulco , and use it as a base for a joint Army - Navy expedition into Mexico .