The socio-economic cost of the US-Iran War

Since February 28th of this year, the US-Iran war began with Operation Epic Fury. Today, almost five months later, the war still continues.
What is the cost of the US taxpayer? How many have lost their lives due to this conflict?
In this article, I write about the socio-economic cost of the US-Iran war on the US citizen and military:

How the US government responded to Sri Lanka’s Easter Sunday attack

The response of the United States of America especially the Federal Bureau of Investigation (FBI) into Sri Lanka’s Easter Sunday attack is a defining moment in the history of counter terrorism. Immediately after Sri Lanka’s Easter Sunday attack on April 21, 2019 that killed five US nationals, a FBI team located in Singapore flew into Colombo.