How did the united states become stronger after it became independent?

The United States become stronger after it become independent by the expansion of the country because the citizens feel more patriotism, a fact that strengthened the nation. Another thing that help the raise of the United States was the commerce with other countries and the develop of the economy.

in griswold v. connecticut (1965), the supreme court ruled that a state's ban on the use of contraceptives violated the right to marital privacy.

the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.