The Quirino-Recto Colonization Act or Act No. 4197 was enacted which aimed at sending settlers into any part of the country but with special reference to Mindanao as a solution to the Mindanao problem, which was how the peace and order problem with the Moros was called then.

Source: https://www.mindanews.com/mindaviews/2021/04/angay-angay-lang-the-lumads-are-our-people-too-4/