By Max Hunder and Simon Lewis KYIV/BAKHMUT, Ukraine (Reuters) – Vladimir Putin on Thursday accused the West of decades of aggression towards Moscow and warned that if it wanted to attempt to beat Russia on the battlefield it was welcome to try, but this would bring tragedy for Ukraine. His remarks came as Russian Foreign Minister Sergei Lavrov prepared for a closed-door foreign minister’s meeting at a G20 gathering in Indonesia on Friday which will be the first time Putin’s top diplomat comes face-to-face with the most vocal opponents of the invasion of Ukraine in February. In Ukraine, the reg…