Kennedy's address emphasizes the United States' readiness to safeguard freedom against common enemies.
The best explanation of Kennedy's message in the excerpt is: The United States is prepared to protect freedom. Kennedy's words emphasize a call to bear the burden of fighting common enemies like tyranny, poverty, disease, and war. He envisions a grand global alliance to ensure a better life for all mankind, highlighting the commitment to defending freedom and working towards a more fruitful existence for all.
https://brainly.com/question/10618183