Both sides show optimism, but divides remain deep as Russian assaults continue; Ukrainian negotiator insists country needs strong defense guarantees

Yulia Tymoshenko lauds PM Bennett for mediation efforts between Kyiv and Moscow; adds that despite hopes for ceasefire, Ukrainians will not lay down their weapons

BBC uncovers document allegedly showing corrupt deals that led to oligarch's massive fortune; lawyers for Russian-Israeli billionaire deny any criminality

Historian says that Berlin's focus on invoking responsibility for WWII may have prevented important self-criticism over ties with Putin

Marina Ovsyannikova arrested after displaying poster reading 'no war' in English and calling on Russians not to fall for propaganda

Israeli official says Russian leader complained to PM about 'barbaric' Ukrainian acts in separatist-held region

Eccentric billionaire says he is 'absolutely serious' about fighting 69-year-old Russian leader: 'If Putin could so easily humiliate the west, then he would accept the challenge'

As offensive fails to take major cities and Kyiv refuses to concede, CIA director Burns predicts Russian leader will intensify attacks without regard for civilian casualties

Training facility is westernmost target struck during 18-day invasion; airstrikes from Mariupol to Mykolaiv, Chernihiv and Kyiv continue to terrorize fleeing civilians

Leaders discuss efforts to end war for over an hour, PMO says; meanwhile Kyiv's defense minister warns Israel's 'reluctance to choose a side' could hurt ties for years to come