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The BT-7 was the last of the BT series of Soviet cavalry tanks that were produced in large numbers between 1935 and 1940. It was lightly armoured, but reasonably well-armed for the time, and had much better mobility than other contemporary tank designs. The BT tanks were known by the nickname Betka from the acronym, or its diminutive, Betushka.
via Wikipedia infobox
{{Infobox weapon | name = BT-7, BT-7M | image = Soviet cavalry tank BT-7m.jpg | image_size = 300 | caption = BT-7M, 1940, with tracks removed from the wheels and carried on the hull | origin = Soviet Union | type = Light cavalry tank
| is_artillery = | is_vehicle = yes | is_UK = no | service = 1935–45 | used_by = Mongolia (captured) (captured) (captured) (captured) | wars = Soviet–Japanese Border WarsWorld War IIWinter WarContinuation warSoviet–Japanese War
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).