when israel invaded gaza. now hamas is threatening to escalate hostilities against israel. >> over two million men and woman have been deployed in iraq and afghanistan over the last nine years. life on the front lines is tough. coming home isn't easy either. many have a hard time adjusting to civilian life and face problems of post-traumatic stress disorder, unemployment, substance abuse and even homelessness. military officials say they are trying to do more. >> we see as a soldier who has been out there 12 months where is high adrenalin environment, when they face an enemy. they come home and many times they want to replicate that. we have programs, first of you a ensure that we are identifying early on those that are going to have a rough time. >>> as many as 9,000 veterans have to place to call home, including many women who served overseas. in fact female vets are becoming homeless at twice the rate of men. the holidays time can be tough for men and women serving in the armed forces here is a report from a