50 SELLING LATIN AMERICA still persisted in claiming this province and when Dom Pedro made an Empire of Brazil, he also attempted to exercise jurisdiction over Uruguay as well. This ultimately resulted in a war between Brazil and Argentine, in which the Uruguayans rallied to the aid of the Argentinians, defeating the Brazilians. A treaty of peace in which the mediation of Eng land was asked, was signed August 27, 1828, giving Uruguay its independence. The present government is based upon that of the United States and comprises executives in the persons of a President and a Vice-Presi dent, elected for four years, and a legislative body, consisting of a House of Representatives and a Senate. Uruguay occupies an area of 72,210 square miles, or is about as large as all of the New England States. It is virtually an extensive undulating plain, having in its northern sec tion a series of mountain ranges but few of which are higher than 2000 feet. It is bounded on the east by the Atlantic Ocean and on the north by Brazil, the Rio Cuareim