Well, the background was not just for you, it was for others who may not know about the One China Policy.
“Obviously not a secret agreement, as he stated that they were in agreement. One can only assume that was what he was referring to,”
Simple question, then.
What is the agreement?
U.S. Policy is not an agreement between China and U.S.
Taiwan Relations Act is not an agreement between US and China.
Three Communiques are not agreements between US and China.
In which agreement, or communique, or statement, or anything has China ever said they would not use force against Taiwan?