Later in March 22nd, other three people were killed by suicide car bomber, who detonated the bomb at a checkpoint in Sayed Sadiq. That year only, there were 25 suicide bombings executed by 32 attackers. Approximately 151,000 to 600,000 or more Iraqis were killed in the first 3–4 years of conflict (Reese, 2009). Since then, terrorism has evolved and propagated over a decade up to date. This has compromised the national security of the country, with the instability paving the way for more terrorist recruitment and invasion. Most of these terrorist groups were formed to oppose the US forces that invaded their country on 20 March 2003. They were joined by the United Kingdom, several coalition associates, and the post-invasion Iraqi government. The US also had an objective of destroying Iraq’s weapons of mass destruction. The dictatorship government was led by Saddam Hussein (Griffin 2004).
There are several major terrorist groups, operating in Iraq, that pose a major national security to that nation, with the main one being Islamic State of Iraq and Syria (or Sham or Levant) or ISIS, led by Ibrahim Al-Badri, also known as Al-Baghdadi. They are centered in Syria and Iraq. It is a Wahhabi jihadist extremist militant group, mainly composed of Sunni Arabs from Iraq and Syria. As of March 2015, it has control over a region occupied by 10 million people in Iraq and Syria, and through trustworthy native groups, it has control over small areas of Libya, Nigeria and Afghanistan (Griffin 2004). On 29 June 2014, the group declared itself to be an international caliphate, where it entitles itself religious, political and military authority over all Muslims worldwide (Reese, 2009).
The Asaib Ahl-Haq militia is yet another major terrorism group, operating on Iraq grounds.