"Surrogate wars" also known as "proxy wars" are wars fought in a third country. The US and the Soviet Union were fighting each other in, for example, Afghanistan and Vietnam.
They preferred proxy wars, because they came without civilian victims of own population and without a distraction of the infrastructure of their own countries. In short, the two powers could compete militarily with each other without suffering the worst effects of the wars - this situation allowed them to try to defeat the other one without much risk to their own population.
"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution<span> for the United States of America.</span>
State Representation is based off the population of the state, since slaves weren't technically citizens, they were not counted in deciding how many representatives a state had. Slaves were a large majority of the population in the south. The south thought they were under represented and wanted slaves to be counted so representation was fair in their eyes.
