Warship Role In World War

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In World War 2 era, warships had a very big size and using a lot of manpower. In that era major country was using warships in many way. For example, escort convoy, support naval invasion. Not only their big size but their gun is also big to. Most of battle ship had size of main battery about 300-400 mm. Warships in that era was using a lot of production cost and higher technology. Because of that not many country can have a larger fleet like Japan, USA, UK. In present day, warships are become smaller that World War 2 era and using fewer manpower. Warship role in present day doesn’t different from World War 2 era much. Because now a day we don’t have a naval warfare anymore, so warships have no need to protect a convoy or support naval invasion