Filipino scholar Maximo Kalaw wrote in 1927: "A few of the principal facts, however, seem quite clear. Aguinaldo was not made to understand that, in consideration of Filipino cooperation, the United States would extend its sovereignty over the Islands, and thus in place of the old Spanish master a new one would step in. The truth was that nobody at the time ever thought that the end of the war would result in the retention of the Philippines by the United States."