Final answer:
In his inaugural address, President John F. Kennedy called for unity and courage among Americans, invoking a New Frontier vision of service and public commitment.
Step-by-step explanation:
John F. Kennedy's inaugural address is a speech in which the president calls for America to demonstrate unity and courage, both as a government and as a nation of people. President Kennedy inspired a nation to service and commitment to public service, articulating a vision for a New Frontier underpinned by a pioneer spirit.
He dedicated his inaugural address to themes of fighting poverty, winning the space race, and promoting active leadership in civil rights and military preparedness. His call to action, "Ask not what your country can do for you; ask what you can do for your country," embodies this vision of service and the active role each citizen should take in shaping the future of the nation.