The Imjin War, beginning in 1592, marked a critical conflict as Japan, under the leadership of Toyotomi Hideyoshi, launched invasions of Korea. This war drew in Ming China, which intervened to support Korea, leading to a protracted struggle that lasted until 1598. The conflict had profound implications for East Asian geopolitics, resulting in significant loss of life, cultural exchanges, and shifts in power dynamics that would shape the region for centuries.

The Imjin War (1592) deeply influenced Korean sijo poetry, which captured the trauma of invasion and the spirit of resistance. Poets like Kim Si-seup used their verses to convey the pain of loss and the hope for national unity, reflecting the cultural resilience amidst adversity.