 Complete the following phrase:  During his lifetime, the Habsburg rulers of Spain and the Holy Roman Empire faced the 1568 to 1648 Dutch Revolt, the 1618 to 1648 Thirty Years War and other conflicts, including the Franco-Spanish War 16351659. Despite his reluctance, Ferdid made him Imperial commander in 1639, largely due to lack of reliable subordinates; he resigned following a disastrous defeat at 