SABAH is ours.
In 1658, the Sultan of Brunei gave Sabah to the Sultan of Sulu for his help in sending Tausug Warriors to stop a rebelion and civil war. Since then, Sabah became a property of Sultan of Sulu and the Sultanate of Sulu.
In 1878, HM Sultan Hamalul Aklam Kiram (The Sultan of Sulu and the Sultan of Sabah), leased Sabah to a British Company of Gustavus Baron de Overdeck and Alfred Dent "The North Borneo Company.", for their used and their heirs. The leased prohibits the transfer of Sabah to any nation, company or individual without the consent of the Government of the Sultan of Sulu.
In 1946-47, the leased was illegally transfered to the British Government by Overdeck and Dent when their company North Borneo ceased to exist.
On September 12,1962, the still on leased territory of North Borneo (SABAH) and the full sovereignty, the title and dominion over the territory was ceded by the then reigning Sultan of Sulu, HM Sultan Muhammad Esmail E. Kiram I to the Republic of the Philippines. The cession effectively gave the Philippine Government the full authority to pursue their claim in international courts.
In 1963, the British illegally transferred Sabah to newly formed Federation of Malaysia. Upon the illegal inclusion of Sabah into Malaysian Federation, President Diosdado Macapagal broke diplomatic relation with Malaysia.
In 1967, President Ferdinand Marcos initiated "Operation Merdeke" involving the training of commandos in Corrigidor. Their task is to infiltrate Sabah.
Ninoy Aquino, a Filibuster in the Philippine Senate, exposes the secret operation. Because of the expose "Operation Merdeke" became a big failure.
Since then, no other President of the Philippines ever tried to recover Sabah either by peaceful through International Court of Justice or Military means. Making President Marcos the only to ever attempt to do so.