Fighting in Ukraine has killed more than 6,500 people. Filmmaker Patrick Wells travelled to south east Ukraine and got unprecedented access to forces on both sides of the ceasefire line.
US President Barack Obama promises to stand up to Russia over its Ukraine stance as world leaders gather for the G7 summit.
Nick Clegg is among 89 European Union politicians and other senior figures who have been banned from entering Russia, according to a confidential Russian "stop list".
Thousands of Russian troops march through Moscow's Red Square to mark the 70th anniversary of the defeat of Nazi Germany - but many western leaders boycott the event over the Ukraine crisis.
Long suspected but short on the vital evidence, Amnesty International has now accused pro-Russian rebels in Eastern Ukraine of war crimes: namely the execution of captured Ukrainian soldiers. Amnesty
At least 54 crew members die and 15 more are missing after their fishing trawler Dalniy Vostok sank in the sea of Okhotsk off the far north east coast of Russia. Rescuers save 63 of those on board.
The mood music coming out of Iran nuclear talks in Lausanne may be positive, but there are more variations to be played through before a harmonious finale can be achieved.