World War 1 Crossword

This printable crossword puzzle on the topic of World War I has 20 clues. Answers range from 3 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Gas with immediate symptoms
Long name for U-boat
Alliance with Russia
Largest and fastest ship
Put in back of trenches; Greatly used
Ship created by British in 1912
Caused %40 of wounds
Used to drop bombs
Odorless gas
U-boat created by Germany in 1913
Dug to hide from enemies in war zone
Fastest tank at 8mph
Released by grenades at the end of the war
World War _____
Strongest navy
One of the first tanks; 3mph
Used hydrogen to fly
Terrorist group in Serbia
Alliance with Serbia
Gas with delayed symptoms