Elaborate your question more about who you need the information
Like policy of each ??? What ?? Presidents !! But which presidents ?
Sorry
Roosevelt was against the war he wanted to stay neutral in fact he didn't stay neutral because he was supplying the Allies and the Central powers where getting mad so Germany had sent a telegram to Mexico telling them to attack the U.S and they would get back there lost territories so then the Britains got the message and sent it to the U.S and the U.S was mad at Germany so they entered the war
He went to hajj because he wanted to make stronger relationships with Saudi Arabia