The global era provides complexity and requires each other to compete with each other, all transforming increasingly great from time to time. This includes the economic field which is now integrated without boundaries and has become an activity carried out by many people in life. This has a tremendous impact, which not only relates to the positive impact but also the negative impact. From here it relates that in the global era the economy is able to become a way of war, because warfare is not only conventional but economic warfare is able to destroy many people and even generations, economic colonization is no longer directly carried out by planting or forced labor.
But even without weapons, a country can be intervened. Even without invasion, the hegemony is able to dominate without any wounds, but welfare is at stake. War and economic colonization without this limitation is even more deadly, and its impact is massive and comprehensive without a signal, which requires all aspects to remain vigilant.This is where defense economics comes into play, by collaborating a sense of nationalism and defense strategies for everyone, which not only discusses the defense industry or military budget alone, but is more far-reaching, namely related to the benefits that a country can generate from its wealth and independence, by managing the potential of natural resources, human resources, and resources that are able to support national defense and can be properly empowered in facing threats in various conditions, both peaceful and war situations.