Question: Portugese and British troops fought against the invasion of which country?
Answer: Portuguese and their allied British troops fought against the French Invasion of Portugal and by 1815 the situation in Europe had cooled down sufficiently that Joao VI would have been able to return safely to Lisbon.
A single-select problem: Is the question answered in a satisfactory fashion?

pick from the following. A. yes. B. no.
A.