But as demonstrated by the picture below, international relations is like a puzzle, there are many pieces to this puzzle. These pieces consist of individuals, institutions, and states but they all fit together to make up the larger picture of international relations.
picture credit:
http://www.google.com/imgres?um=1&hl=en&sa=N&biw=1517&bih=714&tbm=isch&tbnid=f4P_PVfVGLTO3M:&imgrefurl=http://en.wikipedia.org/wiki/Handshake&docid=A-XE_ieA918WxM&imgurl=http://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Handshake_(Workshop_Cologne_%252706).jpeg/170px-Handshake_(Workshop_Cologne_%252706).jpeg&w=170&h=170&ei=YxWSUPWDD47O0QHGuIHoDQ&zoom=1&iact=hc&vpx=216&vpy=229&dur=206&hovh=135&hovw=135&tx=91&ty=61&sig=116686464983634084211&page=1&tbnh=135&tbnw=135&start=0&ndsp=18&ved=1t:429,i:151
http://www.google.com/imgres?um=1&hl=en&sa=N&biw=1517&bih=714&tbm=isch&tbnid=yCGp-Q-48Zie-M:&imgrefurl=http://www.farmequip.org/committees/international_relations&docid=n4wh_Gj5_NQrXM&imgurl=http://www.farmequip.org/imgupload/international.jpg&w=283&h=424&ei=fxWSUMbpGdPV0gH8iYCoBg&zoom=1&iact=hc&vpx=366&vpy=150&dur=1&hovh=275&hovw=183&tx=86&ty=104&sig=116686464983634084211&page=1&tbnh=145&tbnw=96&start=0&ndsp=27&ved=1t:429,i:89