One year after the “little green men” – Russian soldiers without military insignias – began to appear, first in Crimea and then in the Donbas region, the situation in eastern Ukraine remains both stalemated and volatile. A fragile ceasefire remains in place in most parts of the contested region, but fighting continues to break out in some areas, and many worry that a new Russian-backed offensive could soon be launched around the strategic port of Mariupol.