入獄: imprisonment

Short for 中国地方 (Chūgoku chihō): the Chūgoku region of Japan

the central part of a country, historically, commonly known as the capital city or the main region, where an emperor or other ruler resides / something within a country

(historical or contemporary) any of several kingdoms, empires, or states of the Chinese people

Kyūjitai form of 中国

periphery, outskirts, circumference, surrounding portion, edges / (computer hardware) peripheral / (mathematics) circumference

strengthening, augmentation

reinforce (to strengthen by addition), increase

to threaten

threat; menace