The best definition of nationalism is devotion and loyalty to one’s

country/nation

Explanation:

The nationalism is a political and personal view which has its basis set around devotion and loyalty to one's country/nation. There's multiple forms of nationalism, some being perfectly fine, while some are very extreme. The nationalism can simply be devotion and loyalty to the nation, preserving and cherishing the cultural traits of a particular nation, and living in harmony with the people of other ethnic, racial, cultural groups. On the other hand, there's the extreme form of nationalism. This form of nationalism also is based around the devotion and loyalty to a particular nation, but it is also focused on ethnically pure nation, thus everyone from other ethnicity will face persecution, elimination, torture, or prejudice. This type of nationalism also lifts one's nation as superior compared to the others, spreading hatred and intolerance toward the people from the other ethnic groups.

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.

the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation.