International relations is one of the most exciting components of political science. Professional opportunities are increasingly linked to and pursued within a more complex world. Traditional dimensions of IR central to international peace and prosperity include international diplomacy; arms control; alliance politics; institutionalism; and development studies at both the regional and global levels. Students also cover newer components integral in IR including international political economics; environmental politics; refugee and migration problems; human rights; and human security. The expanding array of areas that can be studied under the IR rubric establishes the field as a dynamic and important part of our daily lives.