Attack the biggest player in your realm with a march of militia, and your weakest dragon. If you can get your attack to be less then (I think) .001% of the defenders wall you will suffer huge amounts of fatalities, thus killing of your militia in a timely manner.
The problem is I don’t think the strongest player in our realm would appreciate that... he seems the kind to go around zeroing everyone. I just choose a higher up in a clan, or a friend you know and ask them to help you kill off militia (keep attacking him with militia), and you can also kill off their militia too!