What was one immediate effect of the discovery of oil in persia?

The correct answer is that Russia and Britain sent troops to protect their interests there. This was aimed at ensuring that the countries had substantial influence in order to restrict foreign access. Oil was an important resource and still remains important as an energy source

- "a new era of american politics began with jackson's election in 1828, but it also completed a grand social experiment begun by the american revolution. nevertheless, jacksonian democracy represented a provocative blending of the best and worst qualities of american society."

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united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).