They<span> ignored tribal, ethnic, and linguistic boundaries. And they forced groups that were sometimes hostile to each other in the same area.</span>
The policies of containment used during the Cold War (which were the Truman Doctrine and the Eisenhower Doctrine) both used the economy to help out other countries to stop the spread of communism. The Eisenhower Doctrine in addition used military forces.
The Bush Doctrine is different because it actually tried to implement democracy into other countries (such as the middle east) in an attempt to stabilize the government.
In 1887<span> Congress passed the </span>Interstate Commerce Act<span>, making the railroads the first industry subject to Federal regulation. Congress passed the law largely in response to public demand that railroad operations be regulated.</span>