When Louis and his family were brought back to the Tuileries, guards now watched over them far more. Whether rightly or wrongly, many people in France believed that the king and queen were plotting with foreign governments to restore the absolute monarchy. The next year, these tensions led to France starting a war with Austria and Prussia. In July 1792, Prussia's Duke of Brunswick wrote "We will destroy Paris into the ground if anything happens to our royal majesty, the king and queen." He was trying to help the king and queen, but instead it did the opposite.