| Territory
|
Japanese name
|
Date
|
Population est. (1943)
|
Notes
|
| South Sakhalin |
Karafuto Prefecture (樺太庁) |
1905–1943 |
406,000 |
Elevated to naichi status in 1943.
|
| Mainland China |
Chūgoku tairiku (中国大陸) |
1931–1945 |
200,000,000 (est) |
Manchukuo 50 million (1940), Rehe, Kwantung Leased Territory, Jiangsu, Shanghai, Shandong, Hebei, Beijing, Tianjin, plus parts of : Guangdong, Guangxi, Hubei, Hunan, Fujian, Guizhou, Inner Mongolia
|
| Japan proper |
naichi (内地) |
1868-1945 |
76,200,000 |
Present day Japan, South Sakhalin (after 1943), and Kuril Islands
|
| Korea |
Chōsen (朝鮮) |
1910-1945 |
25,500,000 |
|
| Taiwan |
Taiwan (臺灣) |
1895-1945 |
6,586,000 |
|
| Hong Kong |
Hon Kon (香港) |
December 12, 1941 – August 15, 1945 |
1,400,000 |
Hong Kong (UK)
|
| :: East Asia (subtotal) |
Higashi Ajia (東アジア) |
– |
310,092,000 |
|
| Vietnam |
Annan (安南) |
July 15, 1940 – August 29, 1945 |
22,122,000 |
As French Indochina (FR)
|
| Cambodia |
Kanbojia (カンボジア) |
July 15, 1940 – August 29, 1945 |
3,100,000 |
As French Indochina, Japanese occupation of Cambodia
|
| Laos |
Raosu (ラオス) |
July 15, 1940 – August 29, 1945 |
1,400,000 |
As French Indochina, Japanese occupation of Laos
|
| Thailand |
Tai (タイ) |
December 8, 1941 – August 15, 1945 |
16,216,000 |
Independent State but Allied with Japan
|
| Malaysia |
Maraya (マラヤ), Kita Boruneo (北ボルネオ), Marai (マライ) |
March 27, 1942 – September 6, 1945 (Malaya), March 29, 1942 – September 9, 1945 (Sarawak, Brunei, Labuan, North Borneo) |
4,938,000 plus 39,000 (Brunei) |
As Malaya (UK), British Borneo (UK), Brunei (UK)
|
| Philippines |
Firipin (フィリピン) |
May 8, 1942 – July 5, 1945 |
17,419,000 |
Philippines (US)
|
| Dutch East Indies |
Higashi Indo (東印度) |
January 18, 1942 – October 21, 1945 |
72,146,000 |
Dutch East Indies (NL)
|
| Singapore |
Syōnan-tō (昭南島) |
February 15, 1942 – September 9, 1945 |
795,000 |
Singapore (UK)
|
| Burma (Myanmar) |
Biruma (ビルマ) |
1942–1945 |
16,800,000 |
Burma (UK)
|
| East Timor |
Higashi Chimōru (東チモール) |
February 19, 1942 – September 2, 1945 |
450,000 |
Portuguese Timor (PT)
|
| :: Southeast Asia (subtotal) |
Tōnan Ajia (東南アジア) |
– |
155,452,000 |
|
| New Guinea |
Nyū Ginia (ニューギニア) |
December 27, 1941 – September 15, 1945 |
1,400,000 |
As Papua and New Guinea (AU)
|
| Guam |
Ōmiya-tō (大宮島) |
January 6, 1942 – October 24, 1945 |
|
from Guam (US)
|
| South Seas Mandate |
Nan'yō Guntō (南洋群島) |
1919–1945 |
129,000 |
from German Empire
|
| Nauru |
Nauru (ナウル) |
August 26, 1942 – September 13, 1945 |
3,000 |
Occupied from the United Kingdom, Australia and New Zealand
|
| Wake Island, US |
Ōtori-shima, -jima (大鳥島) |
December 27, 1941 – September 4, 1945 |
nil |
US
|
| Kiribati |
Kiribasu (キリバス) |
December 1941 – January 22, 1944 |
28,000 |
from Gilbert Islands (UK)
|
| :: Pacific Islands (subtotal) |
– |
– |
1,433,000 |
|
| :: Total Population |
– |
– |
465,544,000 |
|
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