Unit 731 and its affiliated units (Unit 1644 and Unit 100, among others) were involved in research, development and experimental deployment of epidemic-creating biological weapons in assaults against the Chinese populace (both military and civilian) throughout World War II.

Area code 731 is a telephone area code in the North American Numbering Plan (NANP) for the western part of the U.S. state of Tennessee. The numbering plan area (NPA) includes the cities of Jackson , Tiptonville , Savannah , Union City , Dyersburg , Lexington , Selmer , Ripley , Martin , Brownsville , Paris , and Bolivar .

731部队 是 旧日本帝国陆军 關東軍 防疫給水部 本部的 通稱號。 該單位由 石井四郎 所領導，因此也稱之為「石井部隊」 [1]。 “731部队”同时也可以是指在 抗日战争 和 第二次世界大战 期间，旧日本帝国陆军於 日本 以外領土从事 生物战 、 细菌战 和 人体试验 相关研究的所有秘密军事医疗部队，也代指大日本帝国陆军在占领 满洲 （今中国东北）期间所做的生物战和人体试验研究 [2]，731部隊在侵略中國時被指犯下 危害人类罪 及 战争罪 [3]。

Apr 9, 2025 · Unit 731, officially named the Epidemic Prevention and Water Purification Department of the Kwantung Army, began as a legitimate research facility in the city of Harbin. Its purpose was to improve public health and conduct research that might ultimately benefit Japanese soldiers.

Far less known is the wholesale slaughter of hundreds of thousands of Chinese by a Japanese organization known as Unit 731. Established for the purpose of developing biological and chemical weapons, Unit 731 exceeded by a year the duration of the Third Reich.

Area code 731 is the area code for western Tennessee except for the Memphis metro area. It includes the cities of Jackson, Dyersburg, and Martin. It is the only area code that serves the area.

Jun 7, 2024 · Unit 731, a Japanese Imperial Army program, conducted deadly medical experiments and biological weapons testing on Chinese civilians during WWII. Thousands of prisoners were killed in cruel experiments, and perhaps hundreds of thousands more died from biological weapons testing.

Browse area code 731 phone numbers, prefixes and exchanges. The 731 area code serves Memphis, Jackson, Collierville, Arlington, Union City, covering 73 ZIP codes in 26 counties.

6 days ago · 731 is an area code located in the state of Tennessee, US. The largest city it serves is Jackson. Find out where 731 area code zone from, which states, counties and cities it covers. Get the most exact information on time zones here.

About area code 731: location, common spam callers, related area codes, and more. Includes 731 reverse phone lookup to identify spam callers.