Question

Which country convinced Germany to start the WW1?

Answer 1

Austria-Hungary convinced Germany to start the First World War.

Answer 2

Russia

Step-by-step explanation:

Germany entered WWI when declaring war on Russia.

I noticed in your question you asked why Germany started ww1. Germany started ww2. If you question is why Germany started ww2, that is because of Hitler's rise to power, not because of the influence of another country.

Hope this helps!