How did the germans change their tactics in preparing for operation sea lion?

The Germans change their tactics in means of preparing for the operation sea lion was that they change into bombing London and other cities as the operation sea lion is the plan for invasion in the United Kingdom as the battle of Britain occurred in the world war II.

president thomas jefferson commissioned the expedition shortly after the louisiana purchase in 1803 to explore and to map the newly acquired territory, to find a practical route across the western half of the continent, and to establish an american presence in this territory before britain and other european powers