Man has a penchant for wars. Based on economic issues in the past. Today we will or do have forms of economic wars without the physical component involved.

A country can default on loans outside it's borders but the international courts have provisions for that scenario. I am just happy things have still held up as well as they have in general everything considered. Part of the intent of international trade is to equalize the wealth around the world a little more to avoid physical confrontations over it. The job loss is one serious consideration that has to be seen with any signifigant reduction of the military. Logically a reduction or reductions should be taken in good financial times. Not in bad or marginal ones. The overall complex is far to large to ignore its economic clout.

Economists years ago thought that one currency for the whole world might be a good ideal. Personally I never saw it as practical. Still it may be in the future.

At the current state of mans knowledge I do wonder about all the manipulations used in currency matters.. Maybe they are a necessity but they do extract a price and create issues.