Question: Which took place longer in 1945, Battle of Luzon or Operation Undertone?
Sentence (from "Battle of Luzon"): While not the highest in U.S. casualties, it is the highest net casualty battle U.S. forces fought in World War II, with 192,000 to 205,000 Japanese combatants dead (mostly from starvation and disease), 10,000 American combatants killed, and between 120,000 to 140,000 Filipino civilians and combatants killed.
Relevant evidence: No