Moscow says that HMS Defender had ignored a notice against intrusion into what it claims as Russian territorial waters near Crimea

Protection of Karaites, Krymchaks vexes Moscow, which says such divisions are a Nazi practice; Russian president notes Zelensky is Jewish: 'I don’t know, maybe he has mixed blood'

Moscow claims Ukrainian envoy caught 'red-handed' trying to obtain sensitive information; Kyiv protests 'illegal' detention, responds in kind

Kyiv's allies vow support as fears grow over massive Russian military buildup on border and an uptick in clashes with separatists

Recently fighting has intensified between Ukraine's army and pro-Russian separatists in the country's east, with signs of a Russian troop buildup in the region

Author says he approved changes, which also include description of Moscow's takeover of Crimea as 'annexation' rather than 'occupation'

How the 2014 conflict pitted Jewish communities against each other