The Munich ceasefire, or more accurately the "cessation of hostilities", which is supposed to commence today was torpedoed before it even got off the ground.
Even the US Secretary of State John Kerry, who is the principal architect of the agreement, gave a good impression of a man who thought it was not worth the paper it was written on when it was announced.
Despite continued diplomatic efforts in Geneva between the US and Russia, here are a number of reasons why any truce is unlikely to work.
The first comes down to definitions.
The Russian clause in the agreement excluding the Islamic State and the Nusra Front "terrorist groups" is pretty broad and open to myriad interpretations, depending on your perspective and your strategic position.