World War One Crossword

This printable crossword puzzle on the topic of World War I has 10 clues. Answers range from 5 to 12 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

What is a feeling of intense loyalty to one’s country or group?
What did Slavic people in Austria-Hungary want?
Which nation switched alliances or sides during the war?
How close did the German advance get to Paris?
What were duels in the sky called?
What was equipped to fighter planes in battle?
What was built to slow down advancing troops?
Who was our president during World War One?
What part of the craft guided the submarine up and down to different depths?
How many torpedoes could a submarine carry?