Italy's largest trade union has called a national strike for tomorrow and Jean-Claude Trichet will announce the ECB rate decision on Thursday. Those are two of the big events happening around the world this week, with CNBC's Simon Hobbs. And the Asian market open with CNBC's Matthew Taylor in Australia. Also, wildfires and floods hit the area around the Gulf and could have an impact on oil and natural gas prices. And the Post Office may not be able to pay its bills later this year.