What are the responsibilities of main leaders to maintain peaceful relations with other countries?

the speech this question is referring to is president kennedy's special message to the congress on urgent national needs, may 25, 1961

kennedy responds in a very direct and concrete way to those thinking that communism is a positive system:

"yet their aggression is more often concealed than open. they have fired no missiles; and their troops are seldom seen. they send arms, agitators, aid, technicians and propaganda to every troubled area. but where fighting is required, it is usually done by others--by guerrillas striking at night, by assassins striking alone--assassins who have taken the lives of four thousand civil officers in the last twelve months in vietnam alone--by subversives and saboteurs and insurrectionists, who in some cases control whole areas inside of independent nations." (kennedy)

president kennedy presents communism as cowardly, as a hidden and treacherous weapon that strikes from the shadows like thieves, he represents the system as not even being capable of showing and open and overt attack or confrontation. to finish up the response, he expresses that the system attacks even a country's idependence and freedom.

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.

what are the phrases to choose from?

during telophase ii , nuclear membranes form. telophase is the fifth and final stage of mitosis. there are two different types of telophase, i and ii. telophase i is the final step in meiosis i and telophase ii is the final step in meiosis ii. the main difference between telophase i and telophase ii is that homologous chromosomes are separated   from each other during telophase i and sister chromatids are separated at the centromere during telophase ii.