sentences:  New expeditions followed when Colonel Joaquim Tinoco Valente, governor of the Grão-Pará and Rio Negro, became captain; João Pereira Caldas, who was also military, was Xavier de Sampaio's spokesman.The commander of the war expeditions against the invaders was Captain Felipe Sturn.On October 1, 1777, Portugal and Spain reinstated restrictions in the South American colonies, keeping the 1777 Treaty of Saint Idelfonso in force.