The "Imperial Japanese Navy Operation Yearbook" is a Navy document that was produced by the late Kenji Koyama, who was an expert in the War History Department of the Defense Agency. Articles and date strings are created by digitizing war history and creating a database based on valuable materials that have been serialized for a long time in the military magazine "Maru" special magazine as a special appendix. You can quickly extract the desired article content by searching for. The number of searched tables is toasted. The operation is simple, only two input parts (article and date), one execution button and list display part. Enter the character you want to search for in the entry part of the article, and enter a number (8 digits or less) in the date part. Click the execute button to display the search results on the list display. All items (957 items) are displayed without entering search characters. Examples of search characters are "naval battle" and "strategy". "Sinking" is for enemy ships. "Sinking" is a Japanese ship. The date is in YYYYMMDD format (YYYY is 4 digits, MM is month, DD is 2 digits of day) such as "19411208". The date period of the year magazine is from "19401115" to "19461231". The toolbar has a help menu. When you press Help, the above operation method will be displayed as a dialog. Click the OK button to close the help screen. There is no exit button for the app. This app is convenient for those who are interested in sea war history and war history researchers.
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