This document discusses Philippine citizenship laws. It defines naturalized citizens as those granted citizenship according to law. Philippine citizenship can be lost in several ways such as naturalization in another country, renouncing citizenship, swearing allegiance to another nation, serving in a foreign military, or deserting the Philippine armed forces. Citizenship can be reacquired through repatriation or taking an oath of allegiance to the Philippines. Natural-born citizens are those with citizenship from birth. Married women can retain or gain citizenship depending on whether they marry a Philippine or foreign citizen. Dual citizenship is prohibited under the Philippine constitution.