Pesnions dispute and strategy?

The title says pensions dispute and strategy meaning what it is that the unions are doing to fight the governments unacceptable decision on imposing changes to the public sector pensions scheme. The answer must surely be that whatever the strategy, that is if there is one, it doesn't make sense that we went for a walk to central London on the 26 March 2011 we then took a day of action on 30 of November 2012 and then we started doing a few petitions. This is not an intelligent strategy and it isn't one that will scare David Cameron off! The Greek unions on the other hand have had 7 general strikes (of more than one day each time) in the same period of time, shall we learn from them? Call me old fashioned but I think we should!