Why are these large stockpiles of reserves not going to aid the vast numbers of homeless veterans? Because most of the homeless vets do not meet the armed forces charities' eligibility requirements. For instance, AER states that it only helps active duty soldiers and reservists and their dependants, soldiers retired from active duty due to reaching age 60, or "longevity," usually defined as 20 or more years of service, or physical disability. AER also helps surviving spouses and children of soldiers who died while on active duty or after retirement from the military. Since poverty is the major cause of homelessness, the veterans eligible for AER assistance due to having obtained Army retirement status and the accompanying Army benefits are not likely to become homeless.