stating that "between 2005 and 2015 there were 900,000 Christian martyrs worldwide – an average of 90,000 per year." Tomasi's radio address to the Council called the figures both a "shocking conclusion" and "credible research". The accuracy of this number, based on population estimates in a 1982 edition of the World Christian Encyclopedia, is disputed. Almost all died in wars in the Democratic Republic of the Congo, where all sides of the Second Congo War and subsequent conflicts are majority-Christian, and previous years included victims of the Rwandan genocide, an ethnic conflict and a part of the First Congo War where again most belligerents were Christian. As a result, the BBC News Magazine cautioned that "when you hear that 100,000 Christians are dying for their faith, you need to keep in mind that the vast majority – 90,000 – are people who were killed in DR Congo." Klaus Wetzel, an internationally recognized expert on religious persecution, states that this discrepancy in numbers is due to the contradiction between the definition used by Gordon-Conwell defining Christian martyrdom in the widest possible sense, and the more sociological and political definition Wetzel and Open Doors and others such as The International Institute for Religious Freedom (IIRF) use, which is: 'those who are killed, who would not have been killed, if they had not been Christians.' Numbers are affected by several important factors, for example, population distribution is a factor. The United States submits an annual report on religious freedom and persecution to the Congress which recognizes restrictions on religious freedom, ranging from low to very high, in three-quarters of the world's countries including the United States. In approximatrly one quarter of the world's countries, there are high and very high restrictions and oppression, and some of those countries, such as China and India, Indonesia and Pakistan are among those with the highest populations. About three-quarters of the world's population live in the most oppressive countries in the world. Numbers of martyrs are especially difficult to accurately identify, because religious persecution often occurs in conjunction with wider conflicts. This fact complicates the identification of acts of persecution because they may be politically rather than religiously motivated. For example, the U.S. Department of State identified 1.4 million Christians in Iraq in 1991 when the Gulf War began. By 2010, the number of Christians dropped to 700,000 and by 2011 it was estimated that there were