Four forms of nationalism:
cultural
ethnic
religious
political
Geography and language (geographic and linguistic factors) can play a role in the formation of nations. But when we speak of types of nationalism, we generally refer to ideas around which a nationalist feeling is based.
Ethnic nationalism focuses on shared ethnic identity, seen in common language, racial group, etc.
Political nationalism focuses on loyalty to the political state in which one resides--to its ideology and political system. In its formation, the United States served as an example of this form of nationalism, uniting around a shared idea.
Cultural nationalism sits between ethnic and political nationalism, incorporating features of both. It focuses on shared traditions within a country. Though it may have some connection to ethnic commonality, the greater emphasis is on shared experience and national traditions.
Religious nationalism sees a connection between a particular religious identity and national identity. A Muslim nation that operates under Sharia law would be an example. The United States can also be an example if/when people describe the US as "a Christian nation" and see patriotism aligning with principles of the Christian religion.
... as a response to US support of Israel in its 1973 war against a coalition of Arab states led by Egypt and Syria.
OPEC stands for the Organization of Petroleum Exporting Countries. Within that, there was also the Organization of Arab Petroleum Exporting Countries (OAPEC), formed in 1968. In 1973, OAPEC said they would cut oil production "until the Israeli forces are completely evacuated from all the Arab territories occupied in the June 1967 war." (The 1973 war was being fought to regain control of territories lost to Israel in 1967.) Egypt and Syria were both members of OAPEC, and they and other Arab nations were seeking leverage in the struggle with Israel and positioning for post-war settlements.
