What incident occurred that caused an international uproar and for Britain to join the war?

1) Austria-Hungary's attack on Belgium was unacceptable.

2) Germany's attack on Great Britain was shocking.

3) Germany's instrusion of neutral Belgium was not going to be ignored.

4) When Turkey joined the Central Powers, Great Britain had to join the Allied forces.

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Hich explains why the constitution gave congress the power to create a system of federal courts? the constitution wanted congress to share power with the judicial branch. the constitution anticipated the need for courts lower than the supreme court. the constitution wanted congress to share power with the appellate courts. the constitution anticipated the need for courts equal to the supreme court.