Guadalcanal (local name Isatabu)'s a 2,510-square mile (6,500-km²) island in the Pacific Ocean and a province of the Solomon Islands. The World War II Guadalcanal Campaign took place on and around the island. It's mainly jungle, contains the national capital of the Solomon Islands, Honiara, and has a population of 109,382 (1999). History Western charting A Spanish expedition under Álvaro de Mendaña charted the island in 1568. It was named by Mendaña's subordinate Pedro d… (More on Guadalcanal)