escalatory

adj

1. (not-comparable)Involving or relating to escalation.

   “The pattern of gradually increasing severity fits with the general image of an escalatory conflict model.”

   “Is there an escalatory ladder in cyber, the same as with weapons of mass destruction?”

   “Israel intercepted a missile fired by Hezbollah near Tel Aviv on Wednesday, an unprecedented attack by the militant group that reached deep into the country’s commercial heartlands and marked a new escalatory step in the conflict between the two sides.”