I need Helppp pleaseee

What does the term “escalation” refer to?

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?

Plz what action did president jefferson take to stop britain and france from seizing american merchant ships? a. he declared war on france. b. he called for increased tariffs on british and french goods. c. he called for an embargo on all foreign trade. d. he declared war on britain.