(VOVworld)- UN Secretary General Ban Ki Moon warned Western powers on Tuesday that 'there is no military solution' to the Ukraine crisis, after the government in Kiev accused Russia of launching a 'great war'. As NATO prepares to upgrade its combat readiness in eastern Europe, Ban said he was greatly concerned at developments in Ukraine and wanted to avoid further deterioration to 'a very chaotic and dangerous situation'. Ban told reporters during a visit to New Zealand that though the European Union, the Americans and most of the Western countries are discussing very seriously among themselves how to handle this matter, it is important at this time is that they should know there is no military solution in this. The UN chief said there should be a political dialogue for a political solution, which is the more sustainable way.