Please I need shadowing on this: A U.S based firm is about to expand in Japan and Korea. As the HR manager, describe the challenges that might be encountered in terms of the international HR policies, practices(you can decide to cover all HRM practices such as performance management, reward, selection, etc., or focus in more detail on one or two of these practices), structure, and roles of the HR function. please also create an organization and interview if possible in order to follow these steps.