… Diplomacy in the Imjin War (1592-1598): Chosŏn Korea’s Steadfast Performance and its Survival … Diplomacy in … a far longer period than what military confrontation did in this seven-year war. However, historians in the field … recent publications on the Imjin War include: “Toyotomi Hideyoshi’s Invasion of the Chosŏn Kingdom, 1592-1598” in …