In fact, Section 4 of the same Article says: "Citizens of the Philippines who marry aliens shall retain their citizenship, unless by their acts or omission they are deemed, under the law, to have renounced it." The key word is "renounce." Philippine citizenship is lost or reacquired only in a manner provided by law. One way of losing one Filipino citizenship is to renounce it or, by some act or omission, be deemed to have renounced it.If a Filipino marrying an alien is not required to renounce his/her citizenship and is automatically conferred the citizenship of the spouse, the Filipino should be able to retain his/her Philippine citizenship there by acquiring dual/multiple citizenship.