The US Constitution says that the Senate has the power to approve or reject a resolution of ratification of treaties. If the resolution is approved, the ratification takes place. The US Constitution also gives the authority to Congress over financial and budgetary matters, this means that Congress has the power to lay and collect taxes, duties, imposts, and excises. The 16th Amendment extended the power of the Congress including the income taxes.
The Zimmermann Telegram was a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico. If the United States entered World War I against Germany, Mexico would recover Texas, Arizona, and New Mexico
When they found the Americas they were interested because they found new land. The Europeans wanted to find the seven cities of gold and the fountain of youth. They also wanted to find new trading routes. One of the major reasons was to find spices that they crave for drying their meats.