1. Citizenship can be acquired by birth or naturalization. The Philippines follows jus sanguinis, where citizenship is determined by parentage. Naturalization allows non-citizens to become citizens through special acts of Congress or court judgments.
2. There are two types of people living in the Philippines - citizens and aliens. Citizens have full rights while aliens are subject to restrictions. Citizens are further classified as natural-born or naturalized. Only natural-born citizens can hold certain government positions.
3. Citizenship can be lost through naturalization in another country, renunciation, oath of allegiance to another state, military service for another state, or cancellation of naturalization. It can be reacquired