López subsequently broke diplomatic relations with Brazil — in August 1864 — and declared that the occupation of Uruguay by Brazilian troops would be an attack on the equilibrium of the River Plate region.
López brød derefter alle diplomatiske forbindelser med Brasilien i august 1864 og erklærede de brasilianske troppers okkupation af Uruguay for et angreb på ligevægten i Rio de la Plata-regionen.