Is the "rules based" international order collapsing? Has the Russian action in Ukraine ended for good the period of the unipolar world? What are we to make of President Vladimir Putin adopting the rhetoric of "responsibility to protect" arguments previously so beloved of US and British politiacal leaders? 

All this and much more are subjects of our discussion with Tara McCormack who is a lecturer in international relations, sovereignty, security, intervention and the relationship between foreign policy and the structure of the state at the University of Leicester. 

Be sure to follow Tara on twitter - @McCormack_Tara