more than 2,000 families have fled the iraqi city of ramadi after isis forces intensified their offensive on the iraqi city .
the advance is widely seen as an isis 's attempt at an counteroffensive after being forced to abandon the important iraqi city of tikrit , that american troops previously fought some of their bloodiest battles against al-qaida insurgents in ramadi during the eight-year u.s. intervention .
prior to the current bout of fighting , some 400,000 iraqis were already displaced , including 60,000 in ramadi district , according to the international organization for migration .