In general, the Romans defeated Hannibal because they "<span>avoided battle, waited, and counted on the loyalty of their allies," since throughout most of the conflict Hannibal had a much larger army. </span>
"<span>national government creates a treaty with a sovereign nation" would be an example of a delegated power, since this is something that the Constitution explicitly gives Congress the power to do. </span>
This country was Poland and the decision was done in the Ribbentrop-Molotov Pact, which was oficially a pact of non-agression between the two powers but in fact divided Europe into two spheres of influence, one for each country, and Poland was divided.