PARIS -- Soldiers carrying the flags of 76 countries are walking down the Champs-Elysees in Paris, as France's traditional Bastille Day military parade commemorates the centenary of World War I.

France has invited all countries that were involved on the battlefields -- former allies and enemies participating altogether in Monday's ceremony as a symbol of peace.

President Francois Hollande said in a message ahead of the march: "Ten million soldiers were killed or died of their injuries on countless battlefields. We owe them gratitude."

Along with international guests, more than 3,700 soldiers, 50 aircraft, 280 military vehicles and 240 horses of the French national guard are to parade in Paris.

At night fireworks, exceptionally fired from the Eiffel Tower, will be dedicated to the theme of war and peace.