Miss Barton at once set herself to learn all she could about the ideals and methods of the International Red Cross, and during the Franco-Prussian War she had abundant opportunity to see and experience its practical working on the battle-field. At the outbreak of the war in 1870 she was urged to go as a leader, taking the same part that she had borne in the Civil War. "I had not strength to trust for that," said Clara Barton, "and declined with thanks, promising to follow in my own time and way; and I did follow within a week. As I journeyed on," she continued, "I saw the work of these Red Cross societies in the field accomplishing in four months under their systematic organization what we failed to accomplish in four years without it--no mistakes, no needless suffering, no waste, no confusion, but order, plenty, cleanliness, and comfort wherever that little flag made its way--a whole continent marshaled under the banner of the Red Cross. As I saw all this and joined and worked in it, you will not wonder that I said to myself 'if I live to return to my country, I will try to make my people understand the Red Cross and that treaty.'" Months of service in caring for the wounded and the helpless victims of siege and famine were followed by a period of nervous exhaustion from which she but slowly crept back to her former hold on health. At last she was able to return to America to devote herself to bringing her country into line with the Red Cross movement. She found that traditionary prejudice against "entangling alliances with other powers," together with a singular failure to comprehend the vital importance of the matter, militated against the great cause. "Why should we make provision for the wounded?" it was said. "We shall never have another war; we have learned our lesson." It came to Miss Barton then that the work of the Red Cross should be extended to disasters, such as fires, floods, earthquakes, and epidemics--"great public calamities which require, like war, prompt and well-organized help." Years of devoted missionary work with preoccupied officials and a heedless, short-sighted public at length bore fruit. After the Geneva Treaty received the signature of President Arthur on March 1, 1882, it was promptly ratified by the Senate, and the American National Red Cross came into being, with Clara Barton as its first president. Through her influence, too, the International Congress of Berne adopted the "American Amendment," which dealt with the extension of the Red Cross to relief measures in great calamities occurring in times of peace.