ড্রোন প্রযুক্তি: আধুনিক যুদ্ধের নতুন দৃষ্টিকোণ

?????? ????????????? ???? ?????? ????? ???? ??????? ????????? ???? ????? ????? ???????? ?????????? ???????? ????????? ?????? ?????? ?????? ???? ??????? ?????, ????????? ????? ??? ?????????? ??? ??????? ???? ???? ?????? ??? ?????? ??????? ??? ?? ??????? ???? ????? ?????? ??? ???? ????????? ???????? ???????? ????? ??????? ??? ???? ??????? ??????

read more