Answer:the existence of slavery
Explanation:
Just answered this
<span>B) Pre-war alliances were made in secret and elevated diplomatic tensions within those governments.
Or sometimes the fact that alliances were being made was announced publicly -- but the negotiations about the alliances were conducted behind closed doors. And often the terms of the alliances were kept secret, so that only the parties involved knew the full details. This contributed to an attitude of escalating nervousness and tension as the nations of Europe maneuvered for strength over against their perceived adversaries.
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I know this because I'm from Cuba and I'm just going to tell you the real stuff. Before Fidel Castro was president the president before that killed people and left them on the streets but now what they do is kill them and then hide them from people and pretend that nothing happened
1-Germany wanted to have an empire to match other Europeans
2-the alliance system started a chain reaction of countries joining and Germany also wanted to show off there new army to the world(militarianisn)
It is "<span>states the rights of rulers and citizens." </span>
