Ender's army is a collection of his closest friends at Battle School, particularly those who serve under him in the Dragon Army in Battle School before serving as team leads under his command during the Third Invasion, ending with the destruction of the Formic homeworld.
As chronicled in the Bean Quartet, many of them move into positions of international significance during the chaotic years after the end of the Formic War, particularly due to the machinations of Achilles de Flandres.
Characters from the planet Lusitania as introduced in the book Speaker for the Dead The Pequeninos (Portuguese for "Little Ones"), also known as Lusitanian Aborigines or piggies, are an alien species in the category ramen, or sentient non-human.
They are forest-dwelling and technologically primitive, but incredibly intelligent species able to learn languages extremely quickly.
They are given the nickname "piggy" by the colonists of the planet Lusitania where part of the series is set due to their pig-like appearance.