Battle of Java (1942) Ambon and Netherlands New Guinea) became the responsibility of the Imperial Navy. The other units were deployed to other combat areas in the Pacific or returned to Japan. The surrender of the Dutch marked the end of the ABDA defence in the Dutch East Indies and the collapse of the "Malay Barrier" (or "East Indies Barrier"). Because the Allied naval force had been destroyed, the Indian Ocean and the approach to Australia lay open to the Imperial Japanese Navy. Battle of Java (1942) The Battle of Java (Invasion of Java, Operation J) was a battle of the Pacific theatre of
Sumatra Trench in the reducing of the sediment thickness. The thickness is minimum at South Sumatra (1–2 km) and maximum at north Sumatra. The thickest sediment at north Sumatra can compare with the Makran Trench, which has the thickest sediment on Earth (7.5 km). Sediment thickness along the Sumatra Trench varies significantly, which is the result of fracture zones and fossil ridges' influence on basement topography. The thickness is a function of oceanic basement topography in some extent and this feature is extremely distinctive in the part between Simeulue and Siberut Islands (Central Sumatra region 2°N to 3°S) along the trench. This