How did a need for power and control influence and start ww1?

Tension began to grow due to the struggle for control over the Balkan Peninsula.

Explanation:

Order in the Balkan Peninsula was subject to the collaboration between Russia and Austria-Hungary.  Austria-Hungary's power was unstable and under risk, which generated concern, so, in 1908 it added Bosnia and Herzogovina to its territory. This outraged Serbia (which was an independent Balkan country) and also Slavic Russia.

Serbia eventually grew its territory considerably during Balkan wars, which endangered sovereignty of Austria-Hungary. Russia then allied to France and Great Britain (which held tensions with Germany for territory and control over seas) forming the Triple Entente. On the other side, Germany an Austria-Hungary formed an alliance. Soon any conflict would lead into WW1, which was the case of Franz Ferdinand's assasination.

what are local authorities doing to fix the problem

explanation:

sitting in that one chair where he could get shot at was his worst decision.