What are some of the historical events that have contributed to the longtime tensions between the U. S. and Iran

Trump ordering the killing of top Iranian Military Commander

U. S. sending aircarrier to the middle east

Multiple sanctions

U. S. deploys Stealth fighters

1979 - The Iranian Revolution

1980s - U. S. sides with Iraq in Iran's war with neighbor

1983 - U. S. Embassy, Marines attacked in Lebanon

1984 - U. S. lists Iran as a state sponsor of terrorism

1988 - U. S. mistakenly shoots down Iranian passenger jet, killing 290

1995 - Clinton imposes far-reaching oil, trade sanctions

2002 - President Bush labels Iran as part of "Axis of Evil"

2011 - U. S. foils Iranian plot to kill Saudi ambassador on American soil

2018 - Trump pulls U. S. out of landmark nuclear deal with Iran

2019 - Iran launches brazen attacks in the Middle East