The biggest takeover battle in the global steel industry came to an end in late June when Mittal Steel, the world’s biggest steelmaker, acquired Arcelor, the industry’s second-largest company. For five months before shareholders signed off on the .2 billion transaction, both sides were engaged in an acrimonious fight in which European politicians, investment bankers and many others got involved. At times it seemed as though the deal would collapse — especially after Arcelor turned in May to Severstal, a Russian steel manufacturer, as a potential white knight. But finally, after Mittal Steel significantly increased its offer, Arcelor’s shareholders approved, and the deal was clinched. What was Mittal Steel’s strategy in pursuing this acquisition? When the company encountered resistance, how did it frame its negotiation strategy? What will the deal mean for the world steel industry?…