Tanra, a territory that was under the influence of Kudara, also sent an envoy to the Tang Dynasty, and it is speculated that Wakoku and Kudara was involved in this matter at some level.
百済の影響下にあった耽羅も戦後、唐に使節を送っており倭国・百済側として何らかの関与をしたものと推定される。