Final answer:
TRICARE is a government-funded health insurance program for military personnel, retirees, and their dependents, complementing other programs like Medicare for those over 65 and Medicaid for low-income individuals and families.
Step-by-step explanation:
TRICARE is a health insurance plan funded by the U.S. Government primarily for military personnel, retirees, and their dependents. This program is part of the government's commitment to provide health care benefits as an added advantage to the service members of the armed forces. In the United States, other than TRICARE, there are several other government-funded health care programs such as Medicare, which is designed to help those over age 65, and Medicaid, which assists individuals and families with low incomes in obtaining health care. These programs represent the intervention of the government in the health insurance market because the free market often fails to provide affordable health insurance to certain groups like military veterans, the elderly, and low-income families.