For months, pro-Russian separatists have fought Ukrainian forces in two eastern regions of Ukraine but a fragile ceasefire has been agreed by both sides. Here is a timeline of events in the most dangerous conflict to grip Europe since the wars in the former Yugoslavia. 12 November: Nato commander Gen Philip Breedlove says Russian military equipment and Russian combat troops have been seen entering
![Ukraine crisis: Timeline](https://cdn-ak-scissors.b.st-hatena.com/image/square/a2509afca5e87319732532e81fa6b64100b09782/height=288;version=1;width=512/https%3A%2F%2Fichef.bbci.co.uk%2Fnews%2F1024%2Fmedia%2Fimages%2F73082000%2Fjpg%2F_73082465_73082464.jpg)