Can someone please tell me what countries were involved in the World war I?
http://en.wikipedia.org/wiki/World_War_I
=)
Sure! I can help you with that.
To find out which countries were involved in World War I, you can visit the Wikipedia page dedicated to the topic. Here's the link: http://en.wikipedia.org/wiki/World_War_I.
Once you visit the page, you can scroll down to the section called "Participants" or "Belligerents". There, you will find a detailed list of the countries and empires that were involved in the war. The list includes both the Central Powers and the Allied Powers.
Remember to always be cautious when conducting research and verify information from reliable sources like official historical documents or trusted academic articles.