To spread Christianity to the natives of the land
That was President Theodore Roosevelt. However a little back story on the Canal is that the US government actually covertly started and funded the Panamanian Revolution which separated Panama from Columbia and in the end the US forced Panama into giving up the land that would eventually be the Panama Canal however the US covered their tracks and formed an agreement with France to make it seem as if France had bought the land so it was all legit on the international scene then France handed it over to the US who completed the construction of the canal. <span />
D. Land. The Italians wanted more land then the treaty gave them.
Between 1935 and 1937, Congress passed three separate neutrality laws that clamped an embargo on arms sales to belligerents, forbade American ships from entering war zones and prohibited them from being armed, and barred Americans from traveling on belligerent ships.