Is providing an army a direct result of the governments concern about the general welfare of its citizens?

Providing an army can be seen as a reflection of a government's concern for the general welfare of its citizens, as a strong military can protect national security and deter external threats. However, the motivations for maintaining an army can also include political power, territorial ambitions, and economic interests, which may not always align with the welfare of the populace. Ultimately, while the provision of an army can contribute to the safety and stability that benefit citizens, it is not solely driven by a concern for their welfare.