You said escalations of violence cause terrorism.
Any just war is an escalation of violence if nothing else.
Therefore by your logic, a just war causes terrorism.
The implication by your logic is that no war should be had so as not to cause terrorism.
I would agree if you said all war causes vengeful losers to resort to desperate acts of violence against innocent people. I do not agree that a just war should be called off because the enemy on the receiving end of that justice will probably lash out in its death throes. That would be called negotiating with terrorists.
If you are worried about more terrorists, I agree bombing terrorists causes more terrorists, but negotiating with them opens the floodgates. And it's not like we don't have enough bombs.