p palmyra reclaimed with the help of russia. in iraq, isis desperately tries to hold its ground in the country's second largest city of mosul. >> senior commanders take us in in the calm before their final storm. >> there are ambitions to build a caliphate crumbling as small pockets on of isis militants are flushed out. >> the iraqi prime minister is declaring full victory over voice and mosul, saying the entire war-torn city has been liberated from brutality and terrorism. >> in 2017, isis loses all of its major strong holds. lone wolf attacks in the maim of isis ensure their global reign of terror is still far from over. july 4th, u.s. independence day.