Pratt & Whitney Canada, a Canadian subsidiary of the Connecticut-based defense contractor United Technologies Corporation, pleaded guilty June 28, 2012, to violating the Arms Export Control Act and making false statements in connection with its illegal export to China of U.S.-origin military software used in the development of China’s first modern military attack helicopter, the Z-10. In addition, United Technologies Corporation, its U.S.-based subsidiary Hamilton Sundstrand Corporation, and Pratt & Whitney Canada have all agreed to pay more than $75 million as part of a global settlement. All of which is the result of an extensive investigation led by Homeland Security Investigations.