One common misconception about military pensions is that some sort of pension will continue to be paid military spouses who outlive the retiree. While there is a provision to provide for spouses and other eligible beneficiaries, it is not a part of the military pension package but a separate program with its own rules, paperwork, and costs.
SBP provides monthly income to the beneficiary. The income is inflation adjusted each year and it continues until the death of the beneficiary. The amount of benefit is selected when enrolling in SBP as part of the retirement process