Resistance need not be major to add up. Be the sand grain in the cogs – civil disobedience, duty “as ordered” (i.e., without any effort made), refusal to serve or slow service, all adds up to increasing “operating expense” for the opposing force. This ties back to understanding your goals – if you aim to overthrow a government, simply making it too expensive to govern might be as efficient as a frontal attack… and much less dangerous to individual health.