My son is in the Marines and he has heard that President Obama is going to freeze his pay. If this happens, he would like to know if that is a breach of his contract for which he has committed five years of service?

Most likely, a pay freeze by the United States Government would not be considered a breach of contract. When a person receives a regular increase in salary each year, they may believe that they are entitled to that raise. However, unless the contract specifically states that they will receive a raise and states the amount of that raise, the raise is speculative, and cannot be used as grounds for a breach of contract claim. If your son believes his contract specified a regular pay increase, he should speak with an attorney who specializes in military law or employment contract law to determine his next actions.