air defense maneuvers badge

See also https://asiamedals.info/threads/1935-three-cities-joint-air-defense-maneuvers-shinagawa-ward-air-raid-defense-corps-participation-badge-1935.27781/ Obverse 参加章 - Participation Badge reverse 皇紀二五九六年 - 1936 品川區防護團 - Shinagawa Ward Air Raid Defense Corps 東大崎分團 - Higashi-Ōsaki...

Size 42 x 30 mm. Obverse 功勞章 - Merit Badge Osaka city emblem with 護 /defense/ inside. 昭和拾壹年度防空演習参加 - 1936 Air Defense Maneuvers Participation 玉出第二防護分團 - Tamade 2nd Air Raid Defense Corps

Specimen from the collection of Raymond LaBar. Photos courtesy of the owner. Obverse 防空 - Air Defense Osaka city emblem reverse 昭和十年十月 - October 1935 参加記念章 - Participation Commemorative Badge

Specimen from the collection of Raymond LaBar. Photos courtesy of the owner. Obverse 表彰 - Commendation; Award 青 for 青年団 - Youth League https://asiamedals.info/forums/youth-league-seinen-dan-badges.618/

Judging by yellow enameled star this is Keibodan-related badge https://asiamedals.info/forums/keibodan-civil-defense-corps-badges.725/ Obverse 防空 - Air defense 監視 - Surveillance

Specimen from the collection of Raymond LaBar. Photos courtesy of the owner. Obverse 防空 - Air Defense reverse 昭和十ー年九月 - September 1936 福島県防空大演習 - Fukushima Prefecture Air Defense Large Maneuvers 参加記念章 - Participation Commemorative Badge 平町青年團 - Tairamachi (town located in Meguro-ku...

Badge with similar design https://asiamedals.info/threads/1937-air-defense-maneuvers-kobe-ward-air-defense-corps-yamate-branch-participation-commemorative-badge.25026/ Obverse 防空演習参加記念 - Air Defense Maneuvers Participation Commemorative reverse 兵庫区防護團 - Hyogo Ward Air Raid Defense Corps...

Obverse Osaka City Emblem reverse 大阪防空 - Osaka Air Defense 監視哨章 - Observation Post Badge 純銀 - pure silver

See also https://asiamedals.info/threads/1935-air-defense-maneuvers-toshima-ward-air-raid-defense-corps-nishisugamo-no-1-branch-participation-badge.25044/ Obverse Tokyo City Emblem with superimposed Army Star 防空演習参加章 - Air Defense Maneuvers Participation Badge reverse 豊島區防護團 - Toshima...

Reverse 関東地方防空演習 - Kanto Region Air Defense Maneuvers 防空 - Air Defense 参加 - Participation 記念章 - Commemorative Badge 昭和八年八月 - August 1933

Obverse 防空 - Air Defense 参加章 - Participation Badge reverse 昭和十一年防空演習 - 1936 Air Defense Maneuvers 荏原區第二分團 - Ebara Ward No.2 Branch 大阪市 - Osaka City

Obverse 記念 - Commemorative 防 - Air Defense reverse 中野区防護團 - Nakano Ward Air Defense Corps 功勞章 - Merit Badge 第四分團 - 4th Branch 紀元二五九七 - 1937

Obverse 丸山防護分團 - Maruyama Air Defense Branch 第十一支部 - 11th Team

Badge with the same design but from a different Corps https://asiamedals.info/threads/1934-kinki-air-defense-maneuvers-chudai-air-defense-corps-branch-participation-commemorative-badge.26509/ Obverse Emblem of Kitaura Air Defense Corps Branch with 北 in the center 北浦 - Kitaura 防畿 - Defense...

Obverse 東川分團 - Higashikawa [Air Defense Corp] Branch 参加章 - Participation Badge

See also https://asiamedals.info/threads/1937-abeno-ward-air-defense-corp-branch-badge.25051/ Obverse 阿 for 阿倍野区 - Abeno Ward, Osaka 防護 - Defense/Protection reverse 第三回防護記念 - 3rd Air Defense [Maneuvers] Commemorative 阿倍野分團 - Abeno Air Defense Corp Branch 昭和十一年九月 - September 1936

See also https://asiamedals.info/threads/3rd-air-defense-maneuvers-abeno-air-defense-corp-branch-commemorative-badge.25052/ Obverse 阿 for 阿倍野区 - Abeno Ward, Osaka reverse 昭和十二年 - 1937 阿倍野防護分團 - Abeno Air Defense Corp Branch

Obverse Tokyo City Emblem 牛込區防護團 - Ushigome Ward Air Defense Corp reverse 昭和八年八月 - August 1933 関東防空演習記念 - Kanto Air Defense Maneuvers Commemorative

2nd maneuvers badge https://asiamedals.info/threads/1935-second-hanshin-air-defense-maneuvers-kitaurae-air-defense-corps-branch-participation-commemorative-badge.25048/ Obverse Kitaurae Emblem 防空 - Air Defense reverse 昭和十一年九月 - September 1936 阪神防空演習 - Hanshin Air Defense Maneuvers...

3rd maneuvers badge https://asiamedals.info/threads/1936-third-hanshin-air-defense-maneuvers-kitaurae-air-defense-corps-branch-participation-commemorative-badge.25049/ Obverse 防空 - Air Defense reverse 昭和十年十月 - October 1935 阪神防空演習 - Hanshin Air Defense Maneuvers 第二回 - 2nd 参加記念 -...