Spearheads pierce targets Joe and Rosa Belle Cannon joyfully spearheaded the gospel of Christ for more than five decades into the most complex, post-World War II cultures of Japan and Okinawa. After 24 years in the orient, Joe and Rosa Belle received new "orders from headquarters" and set themselves on "patrol" with the gospel, hiking with it, for days at a time, into some of the farthest flung tribes on the island of Papua New Guinea.