What was one thing walt whitman wanted for the entire country

Walt Whitman, arguably America’s most influential and innovative poet, was born into a working class family in West Hills, New York, a village near Hempstead, Long Island, on May 31, 1819, just thirty years after George Washington was inaugurated as the first president of the newly formed United States. Walt Whitman was named after his father, a carpenter and farmer who was 34 years old when Whitman was born. Walter Whitman, Sr., had been born just after the end of the American Revolution; always a liberal thinker, he knew and admired Thomas Paine. Trained as a carpenter but struggling to find work, he had taken up farming by the time Walt was born, but when Walt was just about to turn four, Walter Sr. moved the family to the growing city of Brooklyn, across from New York City, or "Mannahatta" as Whitman would come to call it in his celebratory writings about the city that was just emerging as the nation’s major urban center. One of Walt’s favorite stories about his childhood concerned the time General Lafayette visited New York and, selecting the six-year-old Walt from the crowd, lifted him up and carried him. Whitman later came to view this event as a kind of laying on of hands, the French hero of the American Revolution anointing the future poet of democracy in the energetic city of immigrants, where the new nation was being invented day by day. 

The answer is william henry harrison pursued and defeated british forces retreating into canada.