Once the shooting starts they will learn the truth. In 1938 about all the Cezch tanks had a 37mm gun. Nearly half the German tanks were the MG armed Pz I, and most of the rest were Pz II with 20mm guns. Hardly a handfull of the Pz II & Pz IV. If I recall correctly the Cezchs had a higher proportion of heavy artillery per corps than the Wehrmacht. All this makes me curious about the relative air strength.