Once better decided to change his life by obtaining an American residence and decided to complete the journey of the liberation of the Métis people that he first started in 1869. With the help of the United States military, Riel wanted to invade Manitoba to obtain control. However, because of the lack of desire to cause conflict with the Canadian military the American military rejected his proposition. He then tried to create an international alliance between the Aboriginal and Metis people, which wasn't a success either. In the end his main objective was to simply improve the living conditions and rights of the Métis people in the United States. The failed attempts for Riel to defend the Métis community lead to further mental breakdowns and hospitalization, now in Quebec. Riel returned to Montana from 1879 to continue on his mission to defend the Métis community in the United States. Riel wanted the Métis and the Native people of the region to join forces and create a political movement against the provisional government. Both parties denied this profound movement and after yet another failed attempt to create a revolution he decided to officially become an American citizen and declared “The United States sheltered me, The English didn't care/what they owe they will pay/! I am citizen”. He then spent the next four years improving the conditions of the Montana Métis in any way he could. Riel stayed in the United States from 1880 to 1884 fighting to obtain official residency from the American government but without success he finally departed for Saskatchewan in 1884. Riel concentrated his public life on improving the situation of the Montana Metis and had a big impact on the Métis people in the United States by attempting to address their rights and improve overall living conditions. The following years was a constant battle to obtain official citizenship from the American government. In the end, an American citizenship did not permit the protection from Canadian convictions. The American officials did not confirm his American citizenship because of fear of further conflict with the Canadian government and confirmed Riel's execution for treason in 1885. The Medicine Line (Canada–U.S. border) The Métis homeland existed before the implementation of the Canada–U.S. border and continues to exist on both sides of this border today. The implementation of the border affected the Métis in a multitude of ways, with border enforcement growing