Chemical mortar battalion

（重定向自Chemical mortar）

The United States chemical mortar battalions were army units attached to U.S. Infantry divisions during World War II. They were armed with 4.2 in (107 mm) chemical mortars. For this reason they were also called the "Four-deucers".

单词	Chemical mortar
释义	Chemical mortar 英语百科 Chemical mortar battalion （重定向自Chemical mortar） The United States chemical mortar battalions were army units attached to U.S. Infantry divisions during World War II. They were armed with 4.2 in (107 mm) chemical mortars. For this reason they were also called the "Four-deucers".
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