Which caused the us army to take over the atomic research project being conducted at columbia university in the early 1940s?

U.S entry into world war II caused the us army to take over the atomic research project being conducted at columbia university in the early 1940s.

Explanation:

Nuclear expedition and atomic research was one of the thrust area during world war II in United States. Two special type of nuclear weapons were generated by them in the year 1940. There was a competition in between Germany and U.S in discovering atomic bomb.

After world war I several concillation measures were taken but nonetheless worked out in its best. That's why world war II happened and U.S also enetred into the battle even after following the principle of neutrality. It compelled them to take atomic research project.

president jefferson protested this interference in american trade. he sent james monroe to london to negotiate a treaty. jefferson wanted britain to stop taking sailors from american ships, and to stop interfering in the trade of neutral nations. monroe tried many times to discuss such an agreement. but the british foreign minister was always too busy to see him.

explanation:

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.