Convoy is a group of vehicles traveling together for mutual support and protection. Naval convoys have been used since 12th century for merchant ships. Effective convoy tactics developed during French Revolutionary Wars. Spanish treasure fleets operated convoys from 1520s to 1790. Convoy system reduced wartime insurance premiums for merchant ships
First submarine attacks occurred during American Revolutionary War. Robert Whitehead invented first self-propelled torpedo in 1866. By 1904, all major navies except Germans had submarines. Early ASW relied on surface ships and limited detection capabilities
Maritime history dates back 6,000 years to pre-Indus Valley civilization. First Indian naval fleet established by East India Company in 1612. Became Royal Indian Navy in 1934 after World War II. Indian Navy fully integrated into service by 1962
LHD 230 provides landing helicopter docks. FRT 200 serves as fleet replenishment tanker. LST 140 specializes in amphibious operations. LCT 80 transports tanks and troops. CTS 90 offers sea training and logistics support
Vegapunk was the leading scientist of the SSG and Marines. He discovered seastone, Devil Fruits, and Lineage Factor technologies. His work was 500 years ahead of current technology. He was from Karakuri Island and lived on Egghead
Marines defend citizens from pirates as World Government's force. List excludes CP0 and World Government Officials