First with the end of the Cold War, but ever since the developement of the EU has played a fundamental role in the developement of theories related to International Relations, and second with september 11 th 2001, but from that event the concepts multiculturalism and religion have gotten increased attention, both in and between states.
Fyrst með lokum kalda stríðsins, en frá þeim tíma hefur þróun Evrópusambandsins gegnt veigamiklu hlutverki í þróun kenninga tengdum alþjóðasamskiptum og svo 11. September 2001 en frá þeim atburði hafa hugtökin fjölmenning og trúarbrögð fengið aukna umfjöllun, bæði innan og milli ríkja.