Question

Which of these factors helped cause world war 1?

A. The sudden economic depression that left Europe vulnerable to attack
B. Border disputes between fascist and non-fascist countries
C. Rising tensions between Catholic and Protestant nations in Europe
D. An alliance system that required allies to aid one another in armed conflicts

Answer 1

The answer is D. Hope this helps.

Answer 2

D. An alliance system that required allies to aid one another in armed conflicts

Step-by-step explanation:

The alliance between the UK, France and Russia became known as The Triple Entente, a military alliance that opposed the Union between Germany Austro-Hungary and Italy.

Some years before, a key alliance between France and Russia called the Dual Alliance opposed an increasingly powerful German - Austrian influence in Central and East Europe, as well as in the Balkans.

The alliance system can be compared to a entangled chess game where , two groups stand against, Central powers, against Allied or Entente. In this complex system any move would provoque a reaction of the neighbouring states, so a cascade followed as a reaction to every minuscle event.

The alliance system was one of the main causes since reactions to local events had a multinational event and made the parties act in response.