I think it was called a citizen's army because when citizens came together to form a 'army' the normal army, and other countries, referred to them as a 'citizen's army'
Hope this helps! :)
One way in which the European Union affects the rest of the world is that "<span>d.It improves trade between different parts of the world," since trade is more easily facilitated in Europe itself. </span>
The two sides in a civil war consist of people from the same country. There are no foreign forces, usually people who war over their beliefs. The US Civil War was led because of people who wanted to free the slaves who fought those who wanted to keep the slaves.
Answer:
The lungs and respiratory system are what allows you to breathe, so the answer would be one of the following: integumentary system, skeletal system, muscular system, lymphatic system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems.