Well, to the guy on the ground the matter of the occuping force being a democracy or totalitarian regime probably differs very little, except perhaps the restraint shown on many occasions by the occupying force. The question is if this restraint will be perceived as such, and if they can compare to the very real grievances suffered by the population.

Anyways, the German response (in the east at least) most often involved more armed patrols and sweeps of the countryside, not to mention retaliatory raids against whole villages (rightly or wrongly) associated with attacks. Pretty much each sweep resulted in a few actual partisans dead and numerous civilians killed. This in turn raised the symphaty for the patisans and added more hate among the population for the occupier.

I don't see many similarities between the actual actions performed by the occupiers in this case, but the general spiral of increased violence seems to follow the usual line of such events. While the US obviously doesn't go about cleansing villages and such, there is a definite increase in the number of civilian casualties as fighting goes on, increased resentment, more violence, and so on...

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"Nervous wait for the whistle to blow
Rush of blood and over we go..."
- Iron Maiden, "Paschendale"