Building professional soldiers into the wishes and commitments of many countries, this is due to the strengthening of threats that are not only traditional threats, but also non-traditional threats. This situation confirms that the presence of professional soldiers will ensure the sovereignty of the state, because the military institution can focus on its duties and functions on the defense of the country. In this context, the Indonesian Armed Forces (Tentara Nasional Indonesia—TNI) is also faced with situations that place TNI institutions to become professionals, relying on democratic civilian government through the defense ministry with an emphasis on improving the welfare of soldiers simultaneously with efforts to modernize Indonesia's defense system. Because the Military-Keynesianism approach believes that improving the welfare of the army is part of the consequences of increasing defense budgets. The paper argues that the increase in defense budget will be correlated with the welfare of the army, although the policy is not directly for the welfare of the army. The article also argues that the increase in the defense budget should improve the TNI foundation as an ideal institution by emphasizing the welfare of soldiers.