You cannot lose a fight if you are fighting for a cause. Syrian army has a cause, they are defending their country. But on the other hand, US and Pakistan have no cause. US is fighting for power, and Pakistan is fighting for money. No cause thus US and Pak will never win the war. They are both cowards and run for their lives the minute they get ambushed. Talibnz have a cause and thats how they are keeping a fight for the last 11 years with an ak-47 and a rocket launcher. Syrian rebels have no cause, they are getting paid to destablize the country so Iran and Russia can lose influence in middle east. You always win when you have a cause.so can we take tat if USA is losing bcoz of Guerilla warfare in afpk then syrian army will definitely lose against Guerilla warfare?