Known for his sharp negotiating skills, Trippe built PanAm into the world’s only truly global air carrier. Trippe’s success at PanAm was due in large part to his cooperation with different branches of national governments, winning large mail contracts in 1927 between the United States and Cuba, and supporting the Allied Forces in the Pacific during World War II. Such dealings, in conjunction with Trippe’s acquisition of landing rights all over the world, helped PanAm become an industry leader in international air travel.