Describe two steps charles de gaulle took to reassert french power in europe

De Gaulle wanted to see France independent and being able to defend itself, and he launched a nuclear power program, which made France the fourth nuclear power at the time. 

Another thing that he did was restoring amicable relations with the Germans, which lead to a more prominent role of France (as allied with Germany) in Europe.  

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.