Use an example from us history to explain the difference between isolation and engagement withing us foreign policy

U.S. foreign policy during the 1920s was characterized by the enactment of isolationist policies: for instance, the US foreign policy towards the League of Nations: US opted not to join even though it had been the nation to first propose such international cooperation. Instead, the United States focused on building the domestic economy by supporting business growth, encouraging industrial expansion, imposing tariffs on imported products and limiting immigration.

(Engagement) President Obama’s primary goal seems to be to bolster respect for ordinary Cubans’ human rights, not to bring about regime change. The opportunity it presented for Cubans to engage with Americans – first family to family, then business to business – was significant.

depends on what they need

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals