Who is obama ? explain please

This is the belief that a nation must develop and maintain a strong military force in order to pursue and defend its national interests.

Which best describes how president kennedy apples to the audiences at the beginning of his speech?

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.