which of the basic concepts expressed below is the underlying principle of a federal government created by the US Constitution

to protect the united states' role as a world leader, president truman wanted to prevent the soviet union from spreading communism beyond its post-world war ii boundaries. he declared that the united states must assist any nations struggling to prevent a communist takeover.

the answer would be cities along the east coast.

the uk is a constitutional monarchy (with queen elizabeth ii as head of state) and a parliamentary democracy (with parliament as the legislative organ).

so it would be a parliamentary democracy under a constitutional monarchy