Sulu Archipelago in the context of "Slow loris"

Sulawesi (/ˌsuːləˈweɪsi/ SOO-lə-WAY-see, Indonesian: [ˌsulaˈwesi]), also known as Celebes (/ˈsɛlɪbiːz, səˈliːbiːz/ SEL-ib-eez, sə-LEE-beez), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Archipelago. Within Indonesia, only Sumatra, Borneo, and Papua are larger in territory, and only Java and Sumatra are more populous.

The landmass of Sulawesi includes four peninsulas: the northern Minahasa Peninsula, the East Peninsula, the South Peninsula, and the Southeast Peninsula. Three gulfs separate these peninsulas: the Gulf of Tomini between the northern Minahasa and East peninsulas, the Tolo Gulf between the East and Southeast peninsulas, and the Gulf of Boni between the South and Southeast peninsulas. The Strait of Makassar runs along the western side of the island and separates the island from Borneo.

Mindanao (/ˌmɪndəˈnaʊ/ MIN-də-NOW) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of the same name that also includes its adjacent islands, notably the Sulu Archipelago. According to the 2020 census, Mindanao had a population of 26,252,442, while the entire island group had an estimated population of 27,384,138 as of 2024.

Mindanao is divided into six administrative regions: the Zamboanga Peninsula, Northern Mindanao, the Caraga region, the Davao region, Soccsksargen, and the autonomous region of Bangsamoro. According to the 2020 census, Davao City is the most populous city on the island, with 1,776,949 people, followed by Zamboanga City (pop. 977,234), General Santos (pop. 722,059), Butuan (pop. 372,910), and Cotabato City (pop. 325,079). About 70% of residents identify as Christian and 24% as Muslim. Mindanao is considered the major Bread Basket of the Philippines.

The Sulu Sea (Filipino: Dagat Sulu; Tausug: Dagat sin Sūg; Malay: Laut Sulu; Spanish: Mar de Joló) is a body of water in the southwestern area of the Philippines, separated from the South China Sea in the northwest by Palawan and from the Celebes Sea in the southeast by the Sulu Archipelago. Borneo is found to the southwest and Visayas to the northeast.

The Sulu Sea contains a number of islands. The Cuyo Islands and the Cagayan Islands are part of the province of Palawan whereas Mapun and the Turtle Islands are part of the province of Tawi-Tawi. Sulu Sea is also where the Tubbataha Reef National Marine Park, one of the World Heritage Sites is located.

The Celebes Sea (/ˈsɛlɪbiːz, səˈliːbiz/ SEL-ib-eez, sə-LEE-beez; Filipino: Dagat Selebes) or Sulawesi Sea (Malay: Laut Sulawesi; Indonesian: Laut Sulawesi; pronounced [ˌlaʊt̪̚ sulaˈwesi]) of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east by the Sangihe Islands chain, on the south by Sulawesi's Minahasa Peninsula, and the west by northern Kalimantan in Indonesia. It extends 605 km (376 mi) north-south by 780 km (485 mi) east-west and has a total surface area of 472,000 km (182,000 sq mi), to a maximum depth of 6,220 metres (20,406 ft). South of the Cape Mangkalihat, the sea opens southwest through the Makassar Strait into the Java Sea.

The Celebes Sea is a piece of an ancient ocean basin that formed 42 million years ago in a locale removed from any landmass. By 20 million years ago, the earth's crust movement had moved the basin close enough to the Indonesian and Philippine volcanoes to receive emitted debris. By 10 million years ago the Celebes Sea was inundated with continental debris, including coal, which was shed from a growing young mountain on Borneo and the basin had docked against Eurasia.

The Philippines is inhabited by more than 185 ethnolinguistic groups, many of which are classified as "Indigenous Peoples" under the country's Indigenous Peoples' Rights Act of 1997. Traditionally-Muslim minorities from the southernmost island group of Mindanao are usually categorized together as Moro peoples, whether they are classified as Indigenous peoples or not. About 142 are classified as non-Muslim Indigenous people groups. Ethnolinguistic groups collectively known as the Lowland Christians, forms the majority ethnic group.

The Muslim ethnolinguistic groups of Mindanao, Sulu, and Palawan are collectively referred to as the Moro people, a broad category that includes some Indigenous people groups and some non-Indigenous people groups. With a population of over 5 million people, they comprise about 5% of the country's total population.

Majapahit (Javanese: ꦩꦗꦥꦲꦶꦠ꧀, romanized: Måjåpahit; Javanese pronunciation: [mɔd͡ʒɔpaɪt] (eastern and central dialect) or [mad͡ʒapaɪt] (western dialect), Sanskrit: मजापहित, romanized: majāpahita), also known as Wilwatikta (Javanese: ꦮꦶꦭ꧀ꦮꦠꦶꦏ꧀ꦠ; Javanese pronunciation: [wɪlwatɪkta], Sanskrit: विल्वतिक्त, romanized: vilvatikta), was a Javanese Hindu-Buddhist thalassocratic empire in Southeast Asia based on the island of Java (in modern-day Indonesia). At its greatest extent, following significant military expansions, the territory of the empire and its tributary states covered almost the entire Nusantara archipelago, spanning both Asia and Oceania. After a civil war that weakened control over the vassal states, the empire slowly declined before collapsing in 1527 due to an invasion by the Sultanate of Demak. The fall of Majapahit saw the rise of Islamic kingdoms in Java.

Established by Raden Wijaya in 1292, Majapahit rose to power after the Mongol invasion of Java and reached its peak during the era of the queen Tribhuvana and her son Hayam Wuruk, whose reigns in the mid-14th century were marked by conquests that extended throughout Southeast Asia. This achievement is also credited to the famous prime minister Gajah Mada. According to the Nagarakṛtāgama written in 1365, Majapahit was an empire of 98 tributaries, stretching from Sumatra to New Guinea; including territories in present-day Indonesia, Singapore, Malaysia, Brunei, southern Thailand, Timor Leste, and southwestern Philippines (in particular the Sulu Archipelago), although the scope of Majapahit sphere of influence is still the subject of debate among historians. The nature of Majapahit's relations and influence upon its overseas vassals and also its status as an empire still provokes discussion.

Tausūg (Bahasa Sūg, بَهَسَ سُوْغْ, Filipino: Bahása Sug, Malay: Bahasa Suluk, بهاس سولوق, lit. 'Language of Sulu/the Tausūg people') is an Austronesian language spoken in the province of Sulu in the Philippines and in the eastern area of the state of Sabah, Malaysia. It is widely spoken in the Sulu Archipelago (Sulu, Tawi-Tawi, and Basilan), the Zamboanga Peninsula (Zamboanga del Norte, Zamboanga Sibugay, Zamboanga del Sur, and Zamboanga City), southern Palawan, Malaysia (eastern Sabah), and Indonesia (Tarakan City and Nunukan Regency, province of North Kalimantan).

Tausūg has some lexical similarities or near similarities with Surigaonon language of the provinces Surigao del Norte, Surigao del Sur, and Agusan del Sur and with the Butuanon language of Agusan del Norte; it has also some vocabulary similarities with Sugbuanon, Bicolano, and with other Philippine languages. Many Malay and Arabic words are found in Tausug language.

The Moro people or Bangsamoro people are the 13 Muslim-majority ethnolinguistic Austronesian groups of Mindanao, Sulu, and Palawan, native to the region known as the Bangsamoro (lit. Moro nation or Moro country). As Muslim-majority ethnic groups, they form the largest non-Christian population in the Philippines, and according the 2020 census conducted by the Philippine Statistics Authority, they comprise about 6.5% of the country's total population, or 7.1 million people.

Most Moros are followers of Sunni Islam. The Moros were once independent under a variety of local states, including the Sultanate of Sulu, the Sultanate of Maguindanao, the Sultanate of Buayan, and the Confederation of sultanates in Lanao; withstanding repeated Spanish invasions, the Moro states remained de facto independent up until the Moro rebellion of the early 20th century. Upon Philippine independence in 1946, the Moros continued their struggle for self-determination against a predominantly-Christian Philippines, culminating in a decades-long insurgency of armed rebel groups, chief among them the Moro National Liberation Front (MNLF) and the Moro Islamic Liberation Front (MILF), against the Armed Forces of the Philippines.