In the U.S., unlike the UK and several other countries, the National Labor Relations Act (NLRA) provides a legally protected right for private sector employees to strike in order to gain better wages, benefits, or working conditions without the threat of termination. However, striking for economic reasons (i.e., protesting workplace conditions or supporting a union's bargaining demands) allows an employer to hire permanent replacements. If hired, the replacement worker can continue in the job, while the striking worker must wait for a vacancy. But if the strike is due to unfair labor practices, the strikers replaced can demand immediate reinstatement at the end of the strike. If a collective bargaining agreement is in effect, and it contains a "no-strike clause", a strike during the life of the contract could result in the firing of all striking employees, and the dissolution of that union. Although legal, it is viewed by labor organizations as union busting.