Atakebune were Japanese warships of the 16th and 17th century used during the internecine Japanese wars for political control and unity of all Japan.
Murakami Navy's Atakebune model
The djong, jong, jung, or original junk is a type of sailing ship originating from Java that was widely used by Javanese sailors. The word was and is spelled jong in its languages of origin, the "djon
Atakebune
…Turtle ship Djong Kim, Yuhan (2025). Hansando and Busan 1592: Admiral Yi Sun-sin's First Victories against Japan. London: Osprey Publishing. ISBN 978-1472868862…
Depiction of a three-masted Javanese jong in Banten, by Hieronymus Megiser, 1610
Early European illustration of jongs and other smaller craft in Banten (D'Eerste Boeck, c. 1599), note the double rudders which distinguished Southeast Asian ships from the Chinese chuán which had a central rudder; a 32–40-ton djong is depicted on the right with 2 tanja sails, a bowsprit sail, and the bridge (an opening in the lower deck)
A bronze cannon, called a cetbang, Metropolitan Museum of Art, New York, from ca. 1470–1478 Majapahit; notice the Surya Majapahit emblem on the cannon