Lockheed Martin appointed Bill Phelps as vice president, External Communications, and Adam Sohn as vice president, Lockheed Martin Space Communications. Both report to Jennifer Whitlow, senior vice president, Lockheed Martin Communications. Phelps succeeds Nettie Johnson who will retire from Lockheed MartinJanuary 31, and Sohn succeeds Andrea Greenan, who was recently named vice president, Internal Communications. Phelps has more than 20 years of experience in corporate communications, public relations and journalism. In his new role, he will lead the corporation's media relations, marketing communications, social media and visual communications functions. He joined Lockheed Martin in 2016 as director, Worldwide Media Relations, serving as the primary spokesperson for the corporation and leading the team responsible for external media engagements. Prior to Lockheed Martin, he was director of Corporate Communications for Altria, which owns some of the nation's large tobacco companies, including Philip Morris USA. Sohn brings more than 20 years of demonstrated success as a communications leader in technology and politics to his new role. As vice president, Space Communications, he is responsible for integrated communications in support of the Lockheed Martin Space business, including employee engagement, community relations, marketing, social media and media relations. Previously, he was director of Strategic Communications at Amazon's devices and services business, where he led a team responsible for global communications strategy, thought leadership and issues management for products including Echo and Alexa, Fire TV, Fire Tablets and Kindle.