There's an interesting side note from the other side of the Korean invasions. Korea at the time possessed a much different firearms technology and had gone all

There's an interesting side note from the other side of the Korean invasions. Korea at the time possessed a much different firearms technology and had gone all in canon and other propelled missile technologies (like the Hwacha). The Japanese invading fleets had more numerous firearms, but not the large cannons the Koreans were fielding (a weapon they'd had in force since 14th century about two hundred years before Japan). Some historians partially credit the victories by noted Admiral Yi Sun-sin to both use of local terrain and waterway lore and the asymmetric fielding of battlefield weaponry. There's a recent movie (The Admiral:Roaring Currents) retelling of the battle that, despite lots of historical liberties and national rah-rah bits, has some interesting visuals on the different dispositions of the opposing fleets. The rest of the invasion seemed to not go as well where the better trained and more mobile Japanese army had control of much of the peninsula off and on. https://en.wikipedia.org/wiki/Yi_Sun-sin https://en.wikipedia.org/wiki/Yi_Sun-sin https://en.wikipedia.org/wiki/Korean_cannon https://en.wikipedia.org/wiki/Korean_cannon https://en.wikipedia.org/wiki/Hwacha https://en.wikipedia.org/wiki/Hwacha https://en.wikipedia.org/wiki/The_Admiral:_Roaring_Currents https://en.wikipedia.org/wiki/The_Admiral:_Roaring_Currents