1) Citizenship refers to membership in a political community with full civil and political rights that imply duties of allegiance and protection.
2) In the Philippines, citizenship is acquired through jus sanguinis (blood relation) where children take the citizenship of their parents, or through naturalization processes defined by law.
3) Philippine citizenship can be lost through renunciation of citizenship to embrace another country, taking an oath of allegiance to another country, or joining the military of another country. It can be re-acquired through naturalization, repatriation, or direct act of Congress.