[2] It was on April 6, 1917, when the United States entered the war against the Central Powers, who were battling the Allies in trench warfare.

Most of them served in Schofield Barracks, Ft. Shafter and Hawaiian National Guard from the ranks of private to sergeant[3] Claudio decided to apply in the U.S. Army.

His last destination was France, where he served, initially, in the trenches of the Toul Sector and, later, with the reserve division near Paris.

Artillery shells pounded "No Man's Land", barbed wires left mutilated hands and gunpowder and blood mixed together.

In the ensuing battle, Private Claudio was killed by enemy fire on June 29, 1918, in Château-Thierry, France.