Jan 7 -2015 Paris France, 12 Killed,9 Injured

Jan 9 -2015 Paris France,4 Killed

Mar 18-2015 Tunis Tunisia, 22 Killed

Jun 26 -2015 Sousse, Tunisia 38 Killed

July 16 - 2015 Chattanooga,TN 5 Killed

Oct 31 - 2015 Egypt, 224 Killed

Nov 13th - 2015 Paris France 130 Killed, 368 injured

Dec 2 - 2015 San Bernadino CA 14 Killed 22 injured

This doesnt count the many many people killed by radical islam in sub-sahara africa.

And the 3 Canadian servicemen who were killed. (Thankfully the soldiers stabbed the other day in Toronto will be ok)

How can these terrorists/murders be defeated? Is it even possible? How do you fight a foe who is underground?