Explan the following concept
a) Red army
b) civil war​

Explanation:The Workers' and Peasants' Red Army, frequently shortened to Red Army was the army and the air force of the Russian Soviet Federative Socialist Republic and, after 1922, the Union of Soviet Socialist Republics. The army was established immediately after the 1917 October Revolution

A civil war, also known as an intrastate war in polemology, is a war between organized groups within the same state or country. The aim of one side may be to take control of the country or a region, to achieve independence for a region or to change government policies.

here are some events that to cause increased conflict between the north and south

1) mexican cession- gaining modern day california, utah, arizona, and new mexico from mexico. caused southern and northern politicians to fight over whether or not there would be slavery in these newly acquired territories.

2) uncle tom's cabin- this famous book described the cruelty of slavery in the south during the antebellum period, causing more northerners to support abolition and southerners to resent the book as they felt it unfairly depicted southern society.

3) kansas- nebraska act- disagreements over whether or not kansas and nebraska would be free or slave states caused issues between northern and southern politicians in congress.

4) bleeding kansas- this fighting took place in kansas after congress allowed this territory to vote on whether or not they would have slavery. citizens were killed and buildings were destroyed during this fighting.

assessment is the missing word