Japanese missions to Silla represent an aspect of the international relations of mutual Silla-Japanese contacts and communication. The bilateral exchanges were intermittent.
The unique nature of these bilateral diplomatic exchanges evolved from a conceptual framework developed by the Chinese.
According to the Nihon Shoki, in the years 501-700 Japan sent 328 official missions to Paekche, 316 to Silla, 146 to Goguryeo, 193 to Imna (Mimana), 20 to Gaya, 20 to Tamna, and 5 to Samhan kingdoms. Exchanges of embassies with the Korean kingdoms of Paekche and Silla were critical for informing the Japanese of cultural developments on the continent.
References
Japanese missions to Silla Wikipedia(Text) CC BY-SA