The navy of all countries originates in their commerce, but Mexico, although situated as we have shown most advantageously for trade, has hitherto possessed but few merchantmen and a small marine. The vessels of war owned by the republic, previous to the conflict with the United States, were either sold, or disarmed, dismantled and laid up, when the nation was menaced with an attack. It was evident to the Mexican cabinet, that the navy could not cope with ours, and in order to prevent its total loss, the few vessels were voluntarily withdrawn from the sea. The officers, however, were generally employed in land duties during the contest, and most of them remained in service until the summer of 1848, when the most efficient were permanently confirmed in their employments, whilst the rest were allowed to retire on unlimited leave.
In considering the actual condition of the national trade and treasury, the government did not believe, on the re-establishment of peace, that it would be justified in creating at once an extensive naval establishment, nevertheless it was convinced that the security of the coasts, the protection of its own small trade, and the interest of its maritime custom houses, rendered the creation of a flotilla indispensable. With this view the minister of war and marine recommended in 1849 the naval establishment which is shown in the following table.