After three years of costly fighting, the insurrection was finally brought to an end when, in a daring operation on March 23, 1901, led by Gen. Frederick Funston, Aguinaldo was captured in his secret headquarters at Palanan in northern Luzon. Aguinaldo took an oath of allegiance to the United States, was granted a pension from the U.S. government, and retired to private life.
With the overwhelming forces of the United States, it's reasonable for Aguinaldo to surrender by taking an oath of allegiance to his captors. From the start until the end of the insurrection, Aguinaldo was courageous to serve his motherland. Although this may seem he's surrendering the country and his honor also, this was a courageous act for honor's sake. Aguinaldo admits that the United States overwhelmed them, and to continue fighting will only lead to more lives lost to a losing battle. Aguinaldo's courageous act to preserve his men is courage in itself and an honor to their lives. He knew the condemnations he will receive, yet to courageously act in fear of them is not honoring what could've been lost and a courageous act to begin with.
For although brave men are passionate, nevertheless they choose courageous acts (in part) for honor's sake, knowing the perils which lie ahead (Aristotle: Nichomachean Ethics, book 3).