The Minsk ceasefire agreement completely collapsed in January 2015, with renewed heavy fighting across the conflict zone, including Donetsk International Airport and Debaltsovo. A new ceasefire, called Minsk II, was agreed to on 12 February 2015.

Minsk II largely held if you don't count near-daily artillery fire and periodic small-unit actions that have killed many hundreds on each side. However, there are numerous signs another major outbreak might be at hand.

Speculation on a renewed major outbreak comes from an April 9 Website Post by Alexander Khodakovsky.

That poster, from the preceding link, is reminiscent of a WWII call to arms. The message on the poster translates as "Join the Peoples' Militia!"