Crunch peace talks in Munich reach late-night dealHumanitarian access is first priority, say John Kerry and Sergei LavrovMilitary action against Isis will continue 12.55am GMT What precisely is meant by a “cessation of hostilities” and the extent of its effect will be the crux of the apparent deal.The full text of the agreement sets it out as follows (I have highlighted some key elements):The ISSG members agreed that a nationwide cessation of hostilities must be urgently implemented, and should apply to any party currently engaged in military or paramilitary hostilities against any other parties other than Daesh [Isis], Jabhat al-Nusra, or other groups designated as terrorist organisations by the United Nations security council.The ISSG members commit to exercise influence for an immediate and significant reduction in violence leading to the nationwide cessation of hostilities.