According to his H.Takahashi in Japan and Eastern Asia, 1953, the Military Government Kaigun Kampar in Sumatra enter into Shio Riau region as part of a strategy of territorial defense military on the East coast of Sumatra.
Menurut H.Takahashi dalam bukunya Japan and Eastern Asia, 1953, Pemerintahan Militer Kaigun di Sumatera memasukkan Kampar ke dalam wilayah Riau Shio sebagai bagian dari strategi pertahanan teritorial militer di pantai Timur Sumatera.