Almost three weeks after Russia launched its invasion of Ukraine, its forces are expanding their offensive to the west of the country. Here are five important developments from this weekend. [Source]
• Analysis: Putin vs. the entire concept of international law
• Analysis: As war breaks out in Europe, China blames the US
• Eurovision: Russia not allowed to compete
• Aeroflot ban: British Airways cancels flights
President Joe Biden described events now underway in Ukraine as "the beginning of a Russian invasion" as he unveiled new sanctions to punish Moscow on Tuesday.