"The greed of the Martian knows no bounds. The march of the red armies will not stop until the tendrils of Martian communism strangle the life out of the entire Solar System. Even though large tracts of the Venusian jungle and the Asian highlands have fallen under the odious rule of the Salvation Party, we shall never falter in our defense of humanity. We shall fight in China, we shall fight in the Amazon, we shall fight on the deserts of Luna and the seas of Venus. We shall fight in the bright blue skies and the inky aether of space. We shall defend our blue marble, no matter the cost. We shall never surrender. England prevails!"
So the third war will be against a Mars gone Red? That could be messy: although commies are less productive than capitalists, they're rather better at industrial absolute warfare than decadent absolute monarchies.
Though the comic was better, I still prefer Roger Allam as Prothero, much better propagandist!