The native Americans already had the first 3 items. The British brought horses to the new world and the native Americans used them a good bit Civil War and after.
If this is the same question, the answer is psychoanalytic.
As military professionals charged with the defense of the Nation, Joint Leaders must be fully conversant in the Military art and science.
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What is Military art and science?</h3>
Military art and science refers to the study of the development, operation, and support of military forces in peace and war.
It has interrelationships with economic, geographic, political, and psychosocial power to achieve the national objectives.
Military science also explores the military tactics or strategies used in warfare and defense.
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Explanation:
Existing age-sex structure
Availability of family planning services
Social and religious beliefs - especially in relation to contraception and abortion
Female employment
Economic prosperity (although in theory when the economy is doing well families can afford to have more children in practice the higher the economic prosperity the lower the birth rate).
Poverty levels – children can be seen as an economic resource in developing countries as they can earn money