Role of Mergers and acquisitions as a growth strategy?

Mergers and Acquisitions are tools to fulfil growth strategy. If a company is working in the market segment where there are so many growth opportunities available and in that market segment few or couple of companies are working and those companies cannot individually take benefits from that growth opportunity then couple or many companies can merge together to take benefit otherwise if the segment has two companies one is relatively large company then other but it don't own the technical speciality or that item which is required by the company to take benefit of growth opportunity but the other small firm has that speciality then the large firm can acquire the small one and by using that technical speciality of that small firm can take benefit of growth opportunity