Simplify the following text for a Grade 11 native English-speaking person.
Original: The Philippine Revolution ( 1896 -- 1898 ) , called the `` Tagalog War '' by the Spanish , was an armed military conflict between the people of the Philippines and the Spanish colonial authorities which resulted in the secession of the Philippine Islands from the Spanish Empire .
Simplified: The Philippine Revolution ( 1896 -- 1898 ) was an armed conflict between the Spanish colonial regime and the Katipunan .