![Japanese Army Self-Defense Forces in gas masks take part in a drill to prepare against possible radiological attacks, in Tokyo November 7, 2008. REUTERS/Kim Kyung-Hoon (JAPAN Stock Photo - Alamy Japanese Army Self-Defense Forces in gas masks take part in a drill to prepare against possible radiological attacks, in Tokyo November 7, 2008. REUTERS/Kim Kyung-Hoon (JAPAN Stock Photo - Alamy](https://c8.alamy.com/comp/2D1NK5T/japanese-army-self-defense-forces-in-gas-masks-take-part-in-a-drill-to-prepare-against-possible-radiological-attacks-in-tokyo-november-7-2008-reuterskim-kyung-hoon-japan-2D1NK5T.jpg)
Japanese Army Self-Defense Forces in gas masks take part in a drill to prepare against possible radiological attacks, in Tokyo November 7, 2008. REUTERS/Kim Kyung-Hoon (JAPAN Stock Photo - Alamy
![Ramon Zataphatique on Twitter: "Imperial japanese navy gas masks. Commonly known as type 93 and type 97 (black Ines) #ガスマスク #防毒面 #防毒 #WW2 #GasMask http://t.co/isVYx2hCuZ" / Twitter Ramon Zataphatique on Twitter: "Imperial japanese navy gas masks. Commonly known as type 93 and type 97 (black Ines) #ガスマスク #防毒面 #防毒 #WW2 #GasMask http://t.co/isVYx2hCuZ" / Twitter](https://pbs.twimg.com/media/CG48w8nWQAA3AZn.jpg)
Ramon Zataphatique on Twitter: "Imperial japanese navy gas masks. Commonly known as type 93 and type 97 (black Ines) #ガスマスク #防毒面 #防毒 #WW2 #GasMask http://t.co/isVYx2hCuZ" / Twitter
![Amazon.co.jp: IP – 5 Gas Mask Full Set Russian Military FSB Game For The " Japanese Pronunciation with corresponding Modern military Russian Collection" with... : Hobbies Amazon.co.jp: IP – 5 Gas Mask Full Set Russian Military FSB Game For The " Japanese Pronunciation with corresponding Modern military Russian Collection" with... : Hobbies](https://m.media-amazon.com/images/I/41v7zCgsO7L._AC_.jpg)
Amazon.co.jp: IP – 5 Gas Mask Full Set Russian Military FSB Game For The " Japanese Pronunciation with corresponding Modern military Russian Collection" with... : Hobbies
![Japanese safety equipment manufacturer Koken Ltd employee Kumiko Rikiishi demonstrates a gas mask, one of their products, at their main office in Tokyo September 26, 2001. Japanese department stores are doing brisk Japanese safety equipment manufacturer Koken Ltd employee Kumiko Rikiishi demonstrates a gas mask, one of their products, at their main office in Tokyo September 26, 2001. Japanese department stores are doing brisk](https://c8.alamy.com/comp/2D4DC14/japanese-safety-equipment-manufacturer-koken-ltd-employee-kumiko-rikiishi-demonstrates-a-gas-mask-one-of-their-products-at-their-main-office-in-tokyo-september-26-2001-japanese-department-stores-are-doing-brisk-trade-in-disaster-supplies-with-anti-smoke-and-anti-dust-masks-flying-off-the-shelves-after-the-attacks-on-new-york-and-washington-2D4DC14.jpg)