Dude, You've put darfur sultanate, dervish state, andorra, armenia, siam and haiti but you haven't put Canada, Australia, New Zealand and India. 4 of the most important countries in WW1!
Canada, Australia and New Zealand were considered part of the British Empire until the Statute of Westminster (1930s). India was "simply" a colony, meaning it had very little independence. That means the 4 countries couldn't decide whether to join the war, the UK decided it for them. That's why they're included under the British Empire and not listed separately.
Poland was partitioned and split between Russia, Prussia (later Germany), and the Habsburg Empire (later Austria and Austria-Hungary) in 1795. The borders between the three countries would shift over time but Poland would not become independent until the end of World War I in 1918 and took its final shape in 1921 during the Russian Civil War. By "final shape" I mean its interwar shape, not its modern shape which was drawn up by Stalin after World War II.
Armenia was not an independent country in World War I. The bulk of historic Armenia was part of the Ottoman Empire and what we know as Armenia today was the Russian Empire's smaller portion. Azerbaijan was also not independent. Historic Azerbaijan was part of the Russian Empire and Persia. Again, the former Russian portion is what we know as Azerbaijan today.
I admit, the two are on-edge cases. They became (de facto) independent only in 1918 (only half a year of WWI left). Azerbaijan allied with the Ottomans to defeat Armenia. Armenia was allied with the British against the Ottomans and was given independence in the Treaty of Sèvres as an Entente power. The years 1917-23 were a huge mess, it's hard to tell what exactly happened everywhere.
If you are going to include Armenia and Azerbaijan then you have to include Poland, Czechoslovakia and Yugoslavia - all 3 of those states existed on 11th November 1918. And where is Georgia, the third of the trans-Caucasian Republics?
I could try to explain, but by now, it makes more sense to redirect the takers of this quiz to the featured quiz Countries in World War I by AdamSutherland.