Troy,
Germans would have not provided any opposition against the Mongols. Germans were simply too disorganized.
The Mongols could have conquered europe. The Europeans wouldn't have time, knowladge, or resources to adapt their warfare against the mongols. There was absolutely *NO* army, that would be capable of hurting the Mongols, in europe.
When the Mongols fought in China, they fought against an army ten-times more numerous, ten-times better lead and disciplined, ten-times better armed ETC, yet after years of warring the mongols won.¨
If you take all the warriors in europe and put them together, you wouldn't still get an army larger than the one that the Mongols faced in china.
Mongol bows did function in a western European envoirment, as it is stated in the text.
Mongol recurved bow had almost as long range as the longbow, combined with the Mongol's mobility, discipline (which shined in the European armies with its absence), organization, leadership, and tactics made the mongol army, well what it was.
There was only one time (that I can think of) that the Mongol army was ambushed. Mongols had the best inteligence operations of the time, they planned their attacks very, very carefully, unlike many others, and because of that, it was usually the Mongols who ambushed the enemy. The Europeans had absolutely no idea what kind of army the Mongols had, when they saw a simple Mongol, with a pony, and a lether armour, the knights with their two-meter horses probably laughed, but the knights were slaugthered easily, by the Mongol armor piercing arrows.
(btw, aren't we getting little bit off-topic here
)