CHAPTER ONEINTRODUCTION1.1 BACKGROUND OF THE STUDYStrike action also called labour strike or industrial action is a work stoppage caused by the mass refusal of employee(s) to work. A strike usually takes place in respond to employee grievances. Strike became important during the Industrial Revolution, when mass labour became important in factories and mines. In most countries, they were quietly made illegal, as factory owners had far more political power than workers. Most western countries partially legalize striking in the late 19th or early 20th centuries. Strikes are sometimes used to put pressure on government to change polices. Occasionally, strike destabilizes the rule of a particular political party or ruler.In such cases, strikes are often part of a broader social movement taking the form of a campaign of civil resistance. A notable example is the stoppage of work by the indigenous railways workers in (1932) led by Pa Michael Imodu during the colonial era and the first general strike of (1945) in Nigeria. Since 1970 to present time, workers demand for improved condition of work and wages have increased the number of strike actions as management most times would not accurately satisfy the needs and requests of employees even in the face of economic recession. In this study, however, we are going to examine the causes of strike, i.e. consequences and impact in the achievement of trade union objectives. Strikes are the most significant aspect of industrial conflict. Strike is defined as the temporary stoppage of work in the pursuance of grievance or demand. Inpractice however, it has been difficult to separate strike from other forms of expression of industrial dispute as employer lock out workers and workers themselves embark on strike action.It is more useful to view both phenomena as part and parcel of the conflict situation, not as opposite. Rarely does a strike occur over a single issue for an obvious cause may be linked with several other issues that not immediately apparent to the observation that have caused dissatisfaction because solutions to them have been long in coming. The actual occurrence of strike depends on several factors including prevailing circumstances. This also goes to show thatfew strikes occur spontaneously especially as there is no way of guaranteeing that strike actions instead of the other forms of industrial action would be decided upon by workers involved.Each time strike occurs substantial man-hour is lost, a good example is the first general strike of (1945), the (1993) ASU strike where universities in the country was closed for couple of months thereby causing set back in the tertiary institution. The Nigeria Labour Congress, NLC, and Trade Union Congress, TUC, the two major umbrella bodies of workers union in Nigeria mobilized workers for an indefinite strike action which commenced on Monday, 9th January, 2012 to drive home the protest against the fuel subsidy removal of January 1st 2012. The government of Nigeria removed fuel subsidy by increasing the price of petrol per litre from N65 to N141 on January 1st 2012. This nationwide strike affected the country‟s economy negatively where the volume of trading on the floor of the Nigeria Stock Exchange,( NSE) fell by 82 percent, local flights were grounded, and liing of crude oil was hampered. The strike had a lot of effect on the major sector of the economy as activities of the (NSE) that are trading slumped by 80%, while banks complied with the strike order and closed shop, the NSE opened for business as usual. But at close of trading, only 46.06 million shares were traded in 20 deals.