 Complete the following phrase:  More generally, the difficulty in agreeing on the terms of the UNSC resolution highlights the problem of establishing meaningful ceasefires in the case of long-lasting conflicts, i.e., converting preliminary ceasefires into definitive ceasefires that could lead to peace, on a global scale. For instance, there has been a flare-up in the Caucasus, specifically Nagorno-Karabakh, and in the Middle East and North Africa, ceasefires have been fleeting, leading to a call for better enforcement. However, there is a precedent for a major international disaster leading to a lasting peace, i.e., the 