Kennedy most likely uses the clause "beachhead of cooperation may push back the jungle of suspicion, to convey the following idea.
Troops that land on the beach will overcome enemies hiding in the jungle,
O Suspicion is likely to choke the efforts of any cooperation.
Cooperation is the first step in lessening misunderstanding between adversarial nations.
Peace will be preserved by pushing back against enemies.

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.

the correct answer is:   "   3.6 % " .

          →   the unemployment rate is:   " 3.6 % " .

explanation:

to calculate the "unemployment rate" :

the "unemployment rate"   =

  [# of people unemployed] /   [working age population]   * 100 %   ;

                =   [9 million] / [250 million]     *   100 % ;

    →     note:   the units of "million" cancel out;

                    since:   " {million} / {million} = 1 " ;

                =   (9 / 250)   * 100 %   ;

                = 0.036 * 100 % ;

                =   3.6 %

answer:   the unemployment rate is:   " 3.6 % " .

continental currency was denominated in dollars from $​1⁄6 to $80, including many odd denominations in between.