Answer:
The Triple Alliance and Triple Entente were formed through the signing of treaties.
Step-by-step explanation:
- The 'triple Alliance' consisted of 'Germany, Austria-Hungary and Italy' which was formed in 1882.
- This alliance was formed with an objective to protest and enhance the co-operation against the threat to Germany.
- Similarly the triple entente was France, Great Britain and Russia, formed in 1907 before World War 1. Later on Serbia also joined the Entente.
- It was formed because of the fear of Russia seeing the huge growth of armies in Germany and its triple alliance.