1. Of the judgment of the court of first instance, Defendant O lost against Plaintiff D, J, M, and N in excess of the amount ordered to be paid below.

1. Basic facts

A. U.S. Co., Ltd. (hereinafter referred to as “U.”) had a total of 1,378 employees (including 10.1.0, 201 and 808 union members) in V.M. 2, U.S. companies, 1,377 employees, and continued to engage in vessel manufacturing business. From May 6, 1974, U.S. companies were designated as Korean defense industry. From the second half of 208 to December 15, 2010, U.S. reported the plan for human resources adjustment for business reasons to U.S. 1, 200 U.S. 2, 10 U.M. 2, 201, and 10 U.S. 1, 200 U.M. employees, 200 U.M. 1, 200 U.M. companies, and 2,000 U.M. 1, 201).