This past year brought to the fore some challenging international labor and employment law issues that are likely to grow in importance in 2015. Some of these issues became front-page headlines—among them the recent Sony Pictures data breach, the Volkswagen union drive in Tennessee, and the Securities and Exchange Commission’s award of $30 million to an overseas whistleblower.

Other developments illustrate the increasing strength of global unions and the ever-growing importance of corporate compliance. The continuing importance and expansion of these issues highlight their increased complexity and correspondingly increasing challenges for multinational employers (MNEs).