Catholic Just War Doctrine today

Just war theory traditionally has been formulated as a set of moral principles that act as conditions that need to be met in order for the decisions entailed in launching and prosecuting wars to uphold the requisites of justice. The most important is that wars be waged to correct some manifest injustice; this is referred to as the principle of just cause. Others include that war must be the best available remedy for correcting the injustice, and therefore solutions short of war should be employed if possible.