World War II siege of Calais

The video tutorial discusses the concept of the enemy, the provisions made by the city and state for the harbor, and the geographical context of the channel, highlighting the 30-kilometer distance to England.

What is the significance of the enemy mentioned in the text?

How does the provision of the harbor relate to the city and state?

What geographical feature is described as being on the other side of the channel?

What is the distance mentioned that drives England?

Discuss the implications of the distance of 30 kilometers in the context provided.