There are many reasons for the stalemate develop along the western front, they are:
1. <em>The Schlieffen Plan failed</em>, the German commander made an alteration of the forced and made the right wing smaller than the left wing, this made it slower than planned and gave the opportunity to British and French forces to counter-attack. Also, the Germans didn’t plan that Belgium would resist.
2. The second reason is that the <em>Germans didn’t imagine the Russians would attack them in the east</em>, this is one of the reasons the right wing on number 1 was weakened.
3. Even though the Germans were completely exhausted they marched until Paris and French army was unable to defeat the German army at the <em>Battle of Marne</em> because they were in a large number and British and French army weren’t as prepared as the German’s.
4. After this both armies marched to the Belgian coast and stayed there for the <em>next 4 years</em>, this happened for many reasons such as <em>bad weather</em> - it was winter and there was a lot of mud - and the <em>new advanced mechanizes weapons</em> like machine guns made them stay inside their trenches to avoid more deaths.
<span>Nationalist wanted the same concepts uniting the citizens overall. Everyone generally unites as a whole against a common enemy. However, there were some states that wanted independence to make their own decisions.</span>
During and after WWI, America experienced rapid growth due to the fact that pretty much the rest of the western civilization was demolished. American businesses were selling to Europe, and obviously earned a lot of profit. There was a lot of opportunity, and people wanted to spend their extra money on fun things. Advertisers and Marketers capitalized on that, and started a shift into more consumeristic thinking. With the advent of electricity, tons of home appliances were created and marketed, emphasizing the "buy now and pay later" approach. With all of the kitchen appliances, the era of domesticity ended, and women were free to go do other things such as have jobs or pursue fun activities.
The economy thrived, money was created out of nothing (compound interest, etc), which lead to a bubble and eventual collapse in 1929.
Hope this helps! :)
