What was the overall purpose of John F. Kennedy s inaugural speech?

on January 20, 1961, president John F. Kennedy delivered his address in which he announced that "we shall pay any price, bear any burden, meet any hardship, support any friend, oppose any foe to assure the survival and success of liberty

We observe today not a victory of party, but a celebration of freedom - - symbolizing an end, as well as a beginning - - signifying renewal, as well as change. For I have sworn before you and Almighty God the same solemn oath our forebears prescribed nearly a century and three-quarters ago.