Answer:
Conquerable.
Step-by-step explanation:
The Doolittle Raid of 1942 was carried out by the U.S. Air Force in the spring of 1942. 16 aircraft were sent to drop bombs over the Japanese Capital: the city of Tokyo, and the attacks caused over 50 Japanese casualties, and some damage to the city.
The Doolittle Raid was an exploratory action, and it only had the goal to see if the Japanese Archipelago was vulnerable to an air attack. While the damage caused by the attack itself was negligible, it raised morale among the American soldiers, and proved that Japan was conquerable.