The correct answer to this open question is the following.
Although you forgot to attach the options for this question we can say the following.
According to John Locke, if the government fails to protect natural rights, the citizens could overthrow the government and establish a new one.
Here we are talking about the concept of popular sovereignty that originated in the times of the European Enlightenment and was included in the United States Constitution by the US founding fathers. They were directly influenced by the modern concepts on government and society introduced by brilliant philosophers and thinkers of the Enlightenment such as John Locke, Voltaire, Baron de Montesquiou, Jean-Jaques Rosseau, and Thomas Hobbes.
The answer is D, having to fight a two-front war.
The Schlieffen plan was the German strategy to quickly take out France so that they could focus all their troops on Russia.
<span>The Reconstruction was the period of American History directly after the Civil War in post-slavery America. The promise of change for newly freed slaves fell short, with many African Americans continuing to work in slave-like conditions (sharecropping) and encountering severe discrimination.</span>
