The stealth transports were slipping neatly over the Baltic Sea, skirting Polish airspace and concealed from everything that looked their way. There were three of them, identical in design and in their absence of markings. They flew blind, relying on data from the three-dimensional electronic maps stored in their onboard computers and on detailed information fed them by a navigation satellite high overhead. The only sign of their presence was the slight electromagnetic leakage from those computer systems, the faint bloom of heat from the dampened engine exhausts, and their ghostly silhouettes in the night sky.