Moderation doesn't equal "none".
We can provide adequate force to get the job done in a timely, efficient fashion which will actually reduce loss of life, limb and property in the long run. This, so far, is the exact opposite of the tactics employed in both Iraq and Afghanistan, in spite of the fact that we had military people telling our civilian leaders what was needed.
No one can expect a war without casualties. People can reasonably expect that deadly force will only be used as a last resort.