1Joel R. Poinsett to James Monroe, 16 November 1815 (Madison Papers)
I have received by a friend from Rio de Janeiro accounts from the river of Plate to the first of August. Shortly after I left Buenos Ayres, Posadas withdrew from the command, and Dn. Carlos Alvear was appointed Supreme Director. At this period the Expedition under Murillo was hourly expected on the shores of La Plata, and all parties united in the common defence. The undisguised ambition, and...