The British had a military and political presence in Iraq immediately after WWI but they had been in the geographical region long before that time and, in the days of the Empire, where the British were, the Anglicans were.
In the 19th century particularly, there was a strong Anglican interest in Eastern and Oriental Christianity - interestingly, although I’m sure that they didn’t turn away anyone seeking to convert, evangelization does not appear to have been the prime mover in their presence and activities in the Near East and Indian subcontinent. This was, notably, the same era in which “travelogues” masquerading as serious cultural studies were all the rage in Britain - and people hastened to purchase each new work detailing the strange customs of the heathen and otherwise foreign inhabitants of far-flung lands. Whether this quest to better know the unknown likewise spurred the mission clergy, we’ll never know.
However, although it resulted in a few successful ecclesio-cultural incursions into the faithful of the local churches (such as the Anglican influence and presence among some of India’s Saint Thomas Christians), it had the unforeseen benefit of affording much documentation of some indigenous
ecclesia - the Assyrian Church being prominent among those. A number of Anglican clergy who were serious students of Eastern Christianity penned works that have provided historians and students of the East with in-depth knowledge and understanding of Assyro-Chaldean religious praxis, spirituality, vesture, ecclesial organization, etc.
Crucifixes are common among Anglo-Catholics and High Church Anglicans, and not at all uncommon among many othedr bodies within the Anglican Communion.
As to who are the Christians in Iraq - the Chaldean Catholics are, I believe, the largest single body. All of the following among the Apostolic Churches have some presence there - the bolded ones are the most prevalent:
- Chaldean Catholic Church
- Holy Apostolic Catholic Church of the East (Assyrian Church)
- Ancient Church of the East
- Syriac Orthodox Church
- Syriac Catholic Church
- Armenian Apostolic Church
- Armenian Catholic Church
- Melkite Greek-Catholic Church
- Antiochian Greek Orthodox Church
- Maronite Catholic Church
- Latin Catholic Church
There are also Anglicans and smaller numbers of other Protestant Christians.
Many years,
Neil