Complex sentence: The Germans found that Kosovo Albanians were more cooperative than Albanians in Albania itself, mainly because they feared a return to Yugoslav rule, and many of the division's recruits were Albanians from Kosovo.
Split into simpler sentences: The Germans found that Kosovo Albanians were more cooperative than Albanians in Albania itself, mainly because they feared a return to Yugoslav rule. As a result, many of the division's recruits were Albanians from Kosovo.