Reconquista means "reconquest" and is generally used to describe the re-population of the southwest American territories by Mexicans (since their land was originally taken by the United States).
Germany and Austria-Hungary by the Dual alliance
Our economic system helps us make the basic and simplest decisions. For example, what goods should be produced, how much goods should be produced, how the goods should be produced, and who should get (or buy) the goods. Hope that helps! :)