The dire situation of Christians in Iraq is not something that happened overnight. It took many centuries of persecution and displacement by force as the price of division among Christians themselves.
In 1990 Iraq invaded Kuwait under the pretext that Kuwait was stealing Iraqi petroleum through slant drilling when Iraq needed to pay creditors for money borrowed to finance the Iran-Iraq war. Kuwait's over-production of petroleum kept Iraqi revenues low. In 1991, the United States led a coalition of nations to liberate Kuwait by armed forces and was able to liberate Kuwait and destroy much of Iraq's forces. In 2003, against the moral voice of Saint Pope John Paul II, the Unites States and allies invaded Iraq stating that it was bringing in democracy to Iraq. The Baathist regime was overthrown and over a few years new governments were formed which were never able to establish security of minorities the country against violent insurgents. Due to continuing threats to their survival, many Iraqi Christians were displaced, settled in other more tolerant countries or became refugees in the West.
In October 2010, Catholics attending Mass in Our Lady of Salvation Syriac Catholic Church near Baghdad were shot dead by Islamic fundamentalists. And since January 2011, the so-called Arab Spring, supported by the United States government of Barack Obama and Western European powers, caused more violence and divisions along sectarian lines where radical Islamists attacked the religious minorities of Christians and their churches in much of the Arab world. By 2012, Tunisia, Libya, Yemen, and Egypt had fallen to the Muslim radicals known as the Muslim Brotherhood but Egypt alone was restored to civil government with the help of its army in July 2013. For some 4 years, a sectarian war has been raging in Syria between the government's army (Muslim Alawites) supported by Shiite Hizbullah and armed by Russia against Sunni Muslim radicals supported and financed by Turkey, Saudi Arabia, and Qatar.
The Islamic State (also known as ISIS) is an extremist group of Islamists supported by some Muslim organizations across the globe. It is the latest threat yet to global civilization and security. The IS cruel killing of its opponents started to grow in Iraq in 2013 under the pretext that Sunni Muslims were not given a fair treatment by a majority Shiite government. A splinter group of al Qaeda, its ambitious strategy is to demolish civilizations and cultures that do not implement a strict interpretation of Islamic Sunni Sharia as their laws. While IS targets all nations, its command is to destroy Christianity and Judaism since the are considered infidels