Russian President Vladimir Putin on Thursday (Feb 24) announced a "military operation" in Ukraine.
In the surprise statement on television shortly before 6am (11am Singapore time), he said: “I have made the decision of a military operation."
Mr Putin said Russia does not plan to occupy Ukraine, and that the operation aims to protect the people of the Donbass region, according to the IFAX and TASS news agencies.
ST global affairs correspondent Jonathan Eyal discusses the latest developments and what is next for Ukraine in the ST Live show.
He explains Mr Putin's change of stance in calling this development a "military operation" as opposed to what the Russian president earlier described as a "peacekeeping operation".
Mr Eyal also says the key issue from this point is how much of a resistance Ukrainian forces will likely put up against advancing Russian troops.