Asahi Newspaper Kikuzo database contains Asahi Graph overseas Edition. However, only the Japanese language search function is available.
UHM Library also holds the print.
Here are some examples of articles related to WWII.
Link https://j-dac.jp/chosakai/
Dōmei Tsūshinsha 同盟通信社 / Dōmei News Agency
Sole news agency in operation in Japan during World War II. Established in 1936 as an amalgamation of the news sections of two major news agencies of the day, the Shimbun Rengōsha (Associated Press) and the Nihon Dempō Tsūshinsha (Japan Telegraphic News Agency; see Dentsū, Inc). Dōmei issued news that followed government policy lines and collated and analyzed information to be passed on to government offices and the armed forces. It also engaged in propaganda activities directed at foreign countries. It was disbanded in 1945 and replaced by the Kyōdō News Service and the Jiji Press. (Encyclopedia of Japan via JapanKnowledge)
Although the articles are in Japanese, many were translated into English by the US & British Intelligence agencies. The Dōmei Archives contain many news footages and photos. Here are some samples:
Issue no. 0383, Jan. 7, 1938
Issue 0490, May 13, 1938
Issue 2525 October 4, 1944