The Invasion - Hogarth 1756

England - plate 2

For more info go here

France - Plate 1

Today is the date when in 1756 Britain declared war on France starting the Seven Years War so here's a Hogarth print lampooning the French. More info here. 
If you interested in learning about the invasion threat in 1756 and the troops brought over to England this page at Kronoskaf is good.