Thought Experiment: Justice in War

Note:
This is a thought project relevant the concepts jus in bello, justice in war(as opposed to jus ad bellum, just cause for war) and scarcity. If you're not very familiar with the military or foreign relations, this may not be the thread for you.

----------------------------------

Imagine this:

You are a secretary or minister of defense for a country. Your military has some of the most effective weapons systems in the world. Your government has diplomats whose skill and subtlety is nearly unmatchable. None of them, however, can do anything impossible, of course.

You are given various reports that enemy soldiers have taken up positions in populated enemy cities and are firing on you from across a hostile border. Intel reports that it's only a couple dozen soldiers in each city, but the general population is at least sympathetic enough to them not to comply with any request of yours to force the artillery teams out into the countryside(where your military can simply return fire).

You need to suppress this fire. You need to do so:

1) Quickly.
2) Effectively.
3) In a manner that faithfully carries out your position as secretary of minister of defense(your nation comes first).
4) Without infringing upon your moral and ethical codes of conduct.
A) Assume your moral and ethical codes of coduct include not slaughtering troops or civilians(on both sides) enmasse.
B) Assume your moral and ethical codes of conduct include minimizing damage to buildings such as factories, hospitals, schools, and religious constructs.

Questions to ask oneself:
-Damaging the hostile territory's constructs mentioned above is an easy way for leaders of the enemy soldiers to rally the populous to their cause. "Look! Look! These are bad people." A good question to ask is "How do I minimize this?"
-Another good question: "How do I minimize civilian casualties?" The reason being, casualties are another easy focal point of rallying the populous.
-If critics accuse you of violating international law, how do you respond?
-More than likely, enemy soldiers and equipment will be near or inside the mentioned constructs for protection. How do you choose to confront this?
-The most important questions of all to add to all questions:
A) Why?
B) Is that an option?
C) What are possible consequences of this action?

Credit given to Shaviv of Gaiaonline.com
Paraphrased and added to, not copy+paste.