Pak Study MCQsPakistan started to celebrate Defense Day from? Posted on April 10, 2021 by Rana Amir KhanA. 1965 B. 1966 C. 1971 D. 1998Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window)