Any deprivation or revision of the sovereign national identity appears to constitute an ethnocide. National identity could not be subject of imposition, revision or deprivation under any circumstances. Salience National identity can be most noticeable when the nation confronts external or internal enemy and natural disasters. An example of this phenomenon is the rise in patriotism and national identity in the U.S after the terrorist attacks on September 11, 2001. The identity of being an American is salient after the terrorist attacks and American national identity is evoked. Having a common threat or having a common goal unites people in a nation and enhances national identity. Sociologist Anthony Smith argues that national identity has the feature of continuity that can transmit and persist through generations. By expressing the myths of having common descent and common destiny, people's sense of belonging to a nation is enhanced. However, national identities can disappear across time as more people live in foreign countries for a longer time, and can be challenged by supranational identities, which refers to identifying with a more inclusive, larger group that includes people from multiple nations. Research on the study abroad experience that focused on the effects of American stereotypes found that American students faced challenges in connecting with their host country during their study abroad experience because of stereotypes of American identity. A stereotype that affected their experience was connected to politics during the election of Trump, the study found that students would disengage, distance, avoid, assimilate, or challenge their identity or host culture in response to the interactions they faced (Goldstein, 97). These preconceived ideas by the host culture and even by Americans affect the ability of people from different backgrounds to understand and accept one another as an individual rather than the stereotype of a cultural group. People The people are the basic concept for a national identity. But people can be identified and constructed through different logics of nationalism. Examples range from the Völkisch movement to people's republics. National consciousness A national consciousness is a shared sense of national identity and a shared understanding that a people group shares a common ethnic/linguistic/cultural background. Historically, a rise in national consciousness has been the first step towards the creation of a nation. National consciousness, at a glance, is one's level of awareness, of the collective and one's understanding that without "them" there is no "us". It is the