Answer:
Tolerance for each other, irrespective of religious and ethnic affiliations. Showing hospitality, especially to strangers. Living a life devoid of discrimination against other tribes. Encouraging inter-tribal marriages, etc. One can easily promote and foster national unity via inclusion by pointing out realities like citizens enjoying equal opportunity regardless of caste, color, or faith. National unity allows political leaders to harvest citizens' commitment and contribution to nation-building and national development. National unity is one of the most effective means of preventing internal conflicts that can drain the nation's resources and derail its progress. National integration promotes peace and harmony in a society. It reduces areas of conflict among different groups. National unity and integration ensure the security of the lives and properties of citizens from internal and external attacks.