LON2003021503 - LONDON, Feb. 15 (UPI) -- An estimated 1.5million people march down Piccadilly, on their way to congregate in Hyde Park in London on Feb. 15, 2003, to participate in an anti-war protest march, where an estimated 1.5 million people were said to have participated, the largest of it's kind in British history. The United States continues to push the option of war against Iraq, against growing global public support against any military action. rlw/STEVEN E. FRISCHLING/UPI