How did pacal the great impact of the importance of palenque in myan civilization

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.

very positive impact on our industries in the west, sine they promoted settlement and increased the ways in which goods could be transported to market.