"The time between the World Wars was that of rapid technical progress. Even tanks, a relatively new invention, could become obsolete quickly. Even though only several wealthy countries could afford a large number of the newest tanks for their armies, experimental vehicles and small batches cropped up in many nations. Sweden, who managed to retain neutrality during WWI, was among them. Its army was engaged in a lengthy and difficult search for a suitable tank. The search ended with the acceptance of the Strv m/31, or L-10, which begat a whole family of armoured vehicles.
Do it yourself
The first success for Sweden during the interbellum years was the establishment of contacts with German defense companies. Under the Treaty of Versailles, Germany was not allowed to develop or produce new types of armaments. Tanks were strictly forbidden. It was allowed to produce a limited amount of armoured cars for police forces. Nevertheless, Sweden managed to purchase parts for 10 light LK-II tanks from Germany, which were assembled at a shipyard in Stockholm. The tanks were first indexed Pansarvagn fm/22, but then received the name we know them by today: Stridsvagn m/21.
Overall, the military was satisfied with their purchase. Even five years after the end of WWI, the LK-II was not yet obsolete. It had decent off-road performance, especially for a tank of its class, and the crew conditions weren't bad for the era. The only serious drawback was the lack of a cannon. It also turned out that 10 German tanks was all that Sweden could hope for. There was no possibility of ordering more LK-IIs, and none was expected to come up…."
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Armand
criticized a recent Workbench entry, I challenged him to show that he could do better... 
