Over several months in 2020, a group known as APT29 or Cozy Bear, working for Russia's Foreign Intelligence Service, breached a top cybersecurity firm and multiple U.S. government agencies including the Treasury, Commerce, and Energy departments and the National Nuclear Security Administration.
Learn the history of the world's most famous bell at The Liberty Bell Center. Explore the birthplace of democracy at Independence Hall. Stroll along Elfreth's Alley, the nation's oldest continuously inhabited street. Walk the boardwalk or relax in a hammock at Spruce Street Harbor Park!
I hope this helped! Mark me Brainliest! :) -Raven❤️
Answer:
I am positive it is B i am sorry if i am incorrect - Lucy
Explanation:
Military development wasn’t all that advanced in the 1800s, also expansionism and uprisals from colonies were the major cause of war. Also, war tactics were not as aggressive or debastating.
