"We are now faced with a definite two-front scenario: external as well as internal," Air Chief Marshal Tahir Rafiq Butt said.
"While we have always prepared for the traditional and ominous external threat, the new predicament did take us a while to get up to speed with," he said, referring to PAF's "adversarial role" with India and its recent involvement in anti-terror operations.
"Airpower can achieve much more in a short span of time if employed with clear understanding of its capabilities. Its inherent flexibility has enabled nation states to successfully deter their conventional adversaries as well as prosecute irregular outfits," Butt said.
While participating in anti-terror campaigns, the PAF learnt "on the job quickly and (was) efficiently supporting our ground troops in all their operations against militants", he said in an interview with Jane's Defence Weekly.
Butt said the PAF is set to attain the capability of carrying out aerial refuelling of its frontline JF-17 Thunder jets by the end of this summer.
"The ground tests have been very successful and I am satisfied. The (mid air refuelling test) will be done successfully by end of this summer," he said.
The in-flight refuelling of the JF-17s by Il-78 fuel tankers will allow the combat jets to remain airborne for longer. The JF-17 was jointly developed by Pakistan and China.
Pakistan acquired the Il-78 fuel tankers from Ukraine in 2010 and these are being synchronised with the JF-17s.
Butt claimed the capability would enhance the marketability of the JF-17, which is being monitored by several countries due to its cost effectiveness.