The correct answer to this open question is the following.
Although there is no entry attached to this question, we can say that what Mussolini felt about the Kellog-Briand Pact was that Benito Mussolini did not appeal to the pact because it the pact was idealists and naive, thinking that the countries that signed it would never ever consider war as an act of defense.
The pact was the idea of US Secretary of State Frank Kellog and French Foreign Minister, Aristad Briand. It was signed by the allied forces and Germany, Italy, and Japan, the three countries that years later would form the "Evil Axis" that fought the allies during World War II.