Herbert Hoover believed that the government should not intervene in the affairs of American citizens because they got themselves into their own financial mess so they needed to get themselves out of it. This theory was called rugged individualism.
Operation Barbarossa was the Nazi German military invasion of the "USSR", since this was the famous surprise attack by Germany that broke the Nazi-Soviet Pact in World War II.
Option 3: He supported the building of the Hagia Sophia.
Justinian I was one of the outstanding rulers of the Byzantine Empire, he governed from 527 until he died in 565. During his reign, he expanded the Empire and many great monuments were built including the famous Hagia Sophia in 537, which was originally constructed as a church. The church was the largest of its time and considered the greatest architecture building of the Byzantine Empire (330-1453)
The Manhattan Project developed nuclear technology.
