Millions of Iraqis have now fled their country after four years of intense suicide bombings and insurgent attacks, World Vision reports.

According to World Vision's Lindsay Gladding in Amman, Jordan, the UN estimates that over two million Iraqi refugees have crossed the border, and at least 750,000 of those are in Jordan.

Gladding said this was a major human crisis and called on the international community "to recognise this as a crisis".

"Every family that I have talked to in the last three weeks [wants] people to listen and to hear their stories."

According to Gladding, seeking refuge in Jordan has not been all that the people had hoped for. "They are not able to work. They cannot send their children to school. I've met eight and 10-year-old children who have never set foot inside a classroom. That's something that we really need to see changed here."

World Vision is currently aiding the 750,000 refugees in Jordan. "We are helping to provide basic necessities like food and medicines. We're also setting up places for children to be able to come and play and really start to heal and get some sort of normalcy in their lives," Gladding says.

World Vision is working through the local church, which is giving many opportunities for them to serve. "The atmosphere here is very much one of open religion and tolerance. And people understand that we are Christians and that's what motivates us to help people and to listen and to speak out on their behalf because they have been forgotten and silenced."