In 1935, chosen as Hitler's personal emissary, Ribbentrop helped negotiate the German-British Naval Agreement.
Ribbentrop became German foreign minister in 1938 and in 1939 he negotiated the Nazi-Soviet non-aggression pact. In his diaries, he wrote that the pact was 'my very own ideas which I urged on Hitler'.
Ribbentrop also forbade the German ambassador in Warsaw to negotiate, even when German-Polish relations were at a crisis point. He also refused to pass on to Hitler warning reports regarding the crisis as they didn't support Hitler's personal perspective.
In 1943, Goering suggested that 'this war is Ribbentrop's war'.
However, his suggestions were accepted only when they were compatible with Hitler's personal vision, and he was able to gain influence only by telling Hitler what he wanted to hear.