If politics with the Trump administration were a baseball game, most European countries would be striking out—with one exception. Poland, Europe’s rising military and economic power, seems to be coping with every curveball the United States throws its way, and even managing the occasional home run. Some of its successes are due to tactics that any other European nation could replicate: amping up military spending, particularly on U.S. weapons; supporting U.S. policy; and making high-profile,