[1] The headquarters was in Toyohara, capital of the province, based on the Suzuya plain, in the Southern Karafuto area, not far from the ports of Otomari and Maoka.
One example of such defensive structure was in Japanese fortifications to the north of Koton (Naramitoshi) Fortress (now Pobedino) part of Shikuka Fortified District (FD).
In this area, along the principal railroad that crossed the island from north to south, there were 17 permanent emplacements, 31 artillery and 108 machine gun bunkers, 28 artillery and 18 mortar positions and 150 shelters, these installations was constructed by Obishiro Nayaro in 1939 over ancient fortifications from the Russian-Japanese War period.
This structure was very similar in the following areas: additionally including airbases, Naval bases, some Army or Navy detachments and others, along with civil defence units inland.
Probably there were some units in ports in coasts of Taraika Bay, and city of Esutoru at north of province.