World War I Vocabulary Crossword

This printable crossword puzzle on the topic of World War I has 10 clues. Answers range from 5 to 13 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Special type of boat used by Germany (Unterseeboot)
Type of warfare when an entire country's resources are used solely for war
Type of warfare when hand-dug ditches are used as cover
These machines were never exploited during the war because they were more dangerous in training than in real combat
New type of weapon exploited by the Central Power's army
President of the United States during WWI
Which country fired the "First Shot" of WWI
This country had to leave the war because of its internal problems (Revolution)
Type of Balloon used to drop bombs and launch airplanes
Type of war machine that did more as a scary shield than real weapon