The founding father of the laws of armed conflict, Hugo Grotius assumed a ceasefire to be a temporary state of affairs that did not alter the legal state of war. He wrote that if hostilities resumed after a ceasefire is declared, there is no need for a new declaration of war to be made since the legal state of war is ‘not dead but sleeping’. While the official legal state of war may be sleeping’, Grotius’ metaphor perhaps does not imply that nothing happens. Even during sleep, much can and does occur that we are temporarily unaware of. However, ceasefires continue to be largely considered in relation to how to better bring warring parties to the negotiating table, hostilities to a halt and/or their influence on peace processes. The argument advanced in this book is that ceasefires in fact rarely only ‘cease fire’. Consequently, the book offers a more nuanced examination of two core questions: what ceasefires actually are and what areas they affect.