Question: What battle tank was acquired from Germany by the Polish army, developed by Krauss-Maffei?
Sentence (from "Stingray light tank"): It was originally developed for the U.S. Army as a light tank—with firepower matching that of a main battle tank (MBT), while lacking the countermeasures to be considered a main battle tank—for the U.S. Army's Armored Gun System competition in the 1980s.
Relevant evidence: No