So stringent are the criteria that one authority, Charles Journet, said “if the definition of just war provided by Saint Thomas Aquinas .
What is the evidence that there was such an attack.
Righting the wrong must be the actual motive of the intervention.
In the present case, the United States wishes to block Iran and Russia from gaining influence in Syria, and hence wishes to interdict a complete victory for Assad's regime.
The armed attack must have a good prospect of averting the evil it is directed against, without bringing worse consequences with it.