This fatwa, or legal opinion by an Islamic scholar, was issued in October, 2001 to address the concerns of some Muslims in the military about fighting in Muslim countries. The fatwa was written by Dr. Taha Jabir Al-alawani, President of the Fiqh Council of the North America and President of the Graduate School of Islamic and Social Sciences and Sheikh Muhammad Al-Hanooti, member of the fiqh council, and was announced by the American Muslim Council.
"All Muslims ought to be united against all
those who terrorize the innocents, and those who permit the killing
of non-combatants without a justifiable reason.
"The Muslim soldier must perform his duty in this fight despite
the feeling of uneasiness of 'fighting without discriminating.' His
intention must be to fight for enjoining of the truth and defeating
falsehood. It's to prevent aggression on the innocents, or to apprehend
the perpetrators and bring them to justice. It's not his concern what
other consequences of the fighting that might result in his personal
discomfort, since he alone can neither control it nor prevent it.
Furthermore, all deeds are accounted (by God) according to the
intentions.
"To sum up, it's acceptable-God willing-for the Muslim American
military personnel to partake in the fighting in the upcoming battles,
against whomever their country decides has perpetrated terrorism against
them. Keeping in mind to have the proper intention, as explained earlier,
so no doubts would be cast about their loyalty to their country, or to
prevent harm to befall them as might be expected. This is in accordance
with the Islamic jurisprudence rules, which state that necessities dictate
exceptions, as well as the rule that says one may endure a small harm to
avoid a much greater harm. And God the Most High is Most Knowledgeable
and Most Wise."
Source: Islamic Center of Greater Toledo