I, for one, am siding with Vatican on this matter. The situation does not fulfill the requirements of the Just War Doctrine, which state the following in the Catechism of the Catholic Church, paragraph 2309:
|The strict conditions for legitimate defense by military force require rigorous consideration. The gravity of such a decision makes it subject to rigorous conditions of moral legitimacy. At one and the same time:
These are the traditional elements enumerated in what is called the “just war” doctrine. The evaluation of these conditions for moral legitimacy belongs to the prudential judgment of those who have responsibility for the common good.