Describe the location of the equator. which two world war ii battles took place closest to the equator

Tarakan is a triangle-shaped island 2.5 miles (4.0 km) off the coast of Borneo. The island is roughly 15 miles (24 km) long from its northernmost point to the southern tip and 11 miles (18 km) wide towards the north of the island. The small island of Sadau is located about 0.5 miles (0.80 km) off Tarakan's west coast. Almost all of Tarakan's coastline is swampy, and in 1945 mangroves on the northern half of the island stretched 1 mile (1.6 km) to 2 miles (3.2 km) inland. The coastal mangroves in the southern portion of the island were narrower. Inland from the swamps, most of central Tarakan comprised a series of steep and densely forested hills just over 100 feet (30 m) high.[2] Tarakan is located three degrees north of the equator and has a tropical climate. The maximum temperature for most days is about 80 °F (27 °C), and relative humidity is consistently high at about 90 percent.[