How crucial is solidarity between NATO countries in the face of the fresh needs of NATO's east flank, whether the problem is competition within NATO and what challenges Russia faces us, these and another topics appeared at the beginning debate of this year's edition of Defence24 DAY. The strategical importance of NATO's east flank at the last edition of Defence24 DAY was discussed by Jacek Siewiera, Head of the National safety Bureau (BBN), Gen. Philip M. Breedlove, erstwhile ultimate Allied Commander Europe (SACEUR), Dr. Andrew A. Michta, Dean of the College of global and safety Studies, George C. Marshall Center. The discussion was moderated by Dr. Jacek Raubo (Defence24).