Sanctions = act of war

How should we respond when another country imposes sanctions on us?

http://www.reuters.com/article/2012/...88Q0MG20120927

EU seeks $12 billion trade sanctions on U.S. in Boeing row

The European Union on Thursday asked the World Trade Organization for the right to impose trade sanctions worth up to $12 billion annually on the United States in retaliation for illegal U.S. subsidies to planemaker Boeing.

The request, which is the largest penalty ever sought from the WTO, is the latest legal move in what is the world's biggest trade dispute and one of the longest.