Commodore Matthew Perry's expedition in 1853 to Tokyo to force trade with Japan displayed the use of "gunboat diplomacy" by the united states, since the United States was threatening (by implication) to use force if diplomacy failed.
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<span>The 0-19 demographic is the cohort that is the majority of the population in the US over the years. This seems to be counter-intuitive, since it is usually thought that there are typically more adults than kids, but it shows that adults are more dispersed in their ages than youth are in the country.</span>