Answer: powerful.

Economy is the material basis of war, which is at the expense of huge material consumption, and economy plays a decisive role in the war. From a modern point of view, modern national defense and war are inseparable from the upgrading of weapons and equipment and the foster care of soldiers. From the perspective of weapons, without advanced weapons, it is difficult to achieve ideal results in war and national defense. This requires that the investment in the research and development of new weapons and the improvement and maintenance of existing weapons and equipment can not be ignored in national defense construction. Without economic prosperity, it is impossible for the state to provide strong financial support for the army in weapons.

Moreover, without the support of a sound industrial system and advanced industrial technology, especially the development level of heavy industry and high technology, it is impossible for a country to have a strong national defense, because all kinds of weapon systems needed for national defense cannot be done by itself, and it will be subject to people in wartime, passive and without war potential.