Y is For.....
Yanks. Yanks is short for the word Yankees. Yanks, or Yankees, were American soldiers. These soldiers fought in WWII. Yanks was a nickname given by the British.
Z is For.....
Zeppelin. A zeppelin is like a big hot air balloon. These things were huge and were used for spying. They were used for spying on enemies because they didn't make a sound. They were also used for bombing and scouting. They killed over 500 in British bombing raids. They were named after Count Fedinand Von Zeppelin.