children of combat troops show more fear, anxiety and behavioral problems. According to the study, spouses report that when the service member is sent to a combat zone, that their children start to experienced increased anxiety. One in four parents say their children respond poor or very poorly, and a third experienced academic problems. Another study done by the University of California Los Angeles indicated that a year after the parent returns, 30% of children "exhibited clinical levels of anxiety." The Pentagon Study found the effects most pronounced in children between the ages of 5-13, while the UCLA study found contrary evidence that the issues were the strongest in children under the age of 8. "Suddenly military" brats ("Reserve brats" or "National Guard brats") "Suddenly military" (reservist and National Guard) families face additional challenges, related to isolation from other military-family peers, and isolation within their home-town communities, not faced by traditional military families. With the increased demands on the U.S. military, reservists have been called to active duty. The children of these reservists, who are suddenly called to extended active duty, are technically military brats, but they may not identify with or share all of the characteristics of traditional brats (although in certain specific areas, such as war-related issues, they may share a great deal). In an effort to help integrate "suddenly military" brats, groups like "Operation: Military Kids" and "Our Military Kids" came into existence. Operation: Military Kids is a program designed to help "suddenly military" children understand the military culture to which they now belong, and Our Military Kids provides monetary grants that support tutoring, sports and other extracurricular activities of National Guard and Reserve children, whose parents sometimes incur a lapse in income upon being called to active duty. National Guard families are not as familiar with military culture. They are physically separated from other military families, meaning they may get less emotional support during wartime, and may not be as emotionally prepared for active-duty deployment. Both the formal and informal support structures available for the regular military families are not as readily available to reservist families. Operation: Military Kids teaches "suddenly military" brats about military culture and expectations. Children of reservist soldiers also don't share the highly mobile aspect of "regular service" military brat life. They may, however, still develop feelings of difference or isolation in relation to non-military children or teenagers in their home towns,