Shen Xiaoming was converted in Henan Province in 1979 and eventually became a founder of the China Gospel Fellowship, by some estimates the largest church in the world, ministering and teaching throughout the underground house church for years. Today he still labors for the unity and freedom of the Chinese church. Eugene Bach is a pseudonym for a member of the Chinese underground church. He was trained in US military special operations and served two tours in the Persian Gulf and Asia-Pacific region, serving primarily as a member of a rapid response team focusing on targeted threat elimination, counterterrorism, and security. He has been working with the underground church in China for more than fifteen years, helping them to establish forward mission bases in closed countries around the world, including Iraq and Syria. Eugene leads the Chinese mission movement called Back to Jerusalem, which provides essential support for Chinese missionaries in Africa, Asia, and the Middle East. He has also written or coauthored numerous books about the underground church in China, North Korea, and Iran, including ISIS: Heart of Terror, The Underground Church, and I Stand with Christ.