Ex-armed forces minister James Heappey has told Sky's defence and security editor Deborah Haynes the UK should consider sending its forces to Ukraine to train troops.   On the Sky News Daily, host Tom Cheshire talks to her and Sky's military analyst Professor Michael Clarke about the interview with Mr Heappey, who stepped down from his role last month.   They assess the bleak situation in Ukraine and why the conflict is at a critical stage. They also discuss how prepared the UK would be if it faced a war in the near future.  Senior producer: Annie Joyce   Editor: Wendy Parker