Final answer:
Stubby helped protect the soldiers on the battlefield by alerting them to gas attacks, locating wounded soldiers, and boosting morale as a mascot.
Step-by-step explanation:
During World War I, Stubby, a stray dog turned war hero, served alongside soldiers and became adept at detecting gas attacks before they happened. His keen senses would detect gas early, allowing soldiers time to put on their gas masks. Stubby's ability to locate wounded soldiers on the battlefield was invaluable, as he would accompany medics and lead them to the injured. Moreover, his presence as a mascot provided a sense of comfort and morale boost to the soldiers amidst the horrors of war. Stubby's loyalty, intelligence, and bravery made him a remarkable companion who not only protected soldiers physically but also provided emotional support during one of history's darkest periods.