What was the main result of Germany's use of unrestricted submarine warfare

points

Explanation:

This pushed the United States to go into war since cargo ships and non-violent boats were sank for no reason and killed people too

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the andes or andean mountains (spanish: cordillera de los andes) are the longest continental mountain range in the world, forming a continuous highland along the western edge of south america. this range is about 7,000 km (4,300 mi) long, about 200 to 700 km (120 to 430 mi) wide (widest between 18° south and 20° south latitude), and of an average height of about 4,000 m (13,000 ft). the andes extend from north to south through seven south american countries: venezuela, colombia, ecuador, peru, bolivia, chile and argentina.

from wikipedia

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answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast