Twenty-one aircraft from the U.S., Thai, and Singapore Air Forces conduct an 'Elephant Walk' during exercise Cope Tiger 25 at Korat Royal Air Base, Thailand Mar. 25. This was the first formation of it's kind and the largest to ever in Cope Tiger's 31-year history. Cope Tiger is an annual trilateral exercise that demonstrates the three countries' commitment to ensuring maintaining security, stability and prosperity in the region. More