Read the "The Truth About Muhammad: Founder of the World Most Intolerant Religion" by Robert Spencer. This is a old trick, why the truce for 10 years? What happens after that. Or more importantly look up when is ok to break a truce with a infidel? Taqiyya absolutely, and that is being optimistic.
For those who are not familiar with the term, and I agree completely, its all this is.