# Russia invades Ukraine {2022-02-24} (Part 2)

**URL:** <https://boards.straightdope.com/t/russia-invades-ukraine-2022-02-24-part-2/973972>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Tags:** ukraine-invasion, breaking-news\
**Created:** [October 29, 2022, 5:49pm UTC](https://boards.straightdope.com/t/russia-invades-ukraine-2022-02-24-part-2/973972 "2022-10-29T17:49:40Z")\
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**Author:** ![TokyoBayer](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tokyobayer/32/13989_2.png) [@TokyoBayer](https://boards.straightdope.com/u/TokyoBayer)\
**Post date:** [June 17, 2026, 1:55am UTC](https://boards.straightdope.com/t/russia-invades-ukraine-2022-02-24-part-2/973972/8109 "2026-06-17T01:55:33Z")

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Systems for shooting down flying objects have been using multiple barrels forever.

In WWII, a lot of weapons used two or four barrels, such as the British pompom guns, or the 40-mm Bofors. The Iowa class battleships had 20 quad mount Bofors systems for a total of 80 barrels.

Fighters also had multiple machine guns that fired together. The P-51 had six 50 cal machine guns firing together.

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