India, Nov. 11 -- Thousands of veterans, active-duty service members, military families and supporters are gathering in Manhattan on Wednesday, November 11, as New York City marks Veterans Day with its annual Fifth Avenue parade. The 107th edition of the event will honour generations of military service while also recognising major milestones, including the 250th anniversary of the United States and 25 years since the September 11 attacks.

NASA astronaut and U.S. Navy veteran Sunita "Suni" Williams will lead the procession as grand marshal, with road closures and holiday service changes affecting parts of the city.

The parade is one of the largest Veterans Day commemorations in the country. It will bring together participants from every...