Editing Ryder Cup (section)

===1991: "The War on the Shore"===
{{Main|1991 Ryder Cup}}
The overall tension between the teams and the feud between Ballesteros and Azinger escalated at the [[Kiawah Island Golf Resort]] in 1991. At the ceremonial opening dinner, the PGA of America played two videos that were seen as less than hospitable by the European team. The first video was presented as a highlight reel of past Ryder Cups, but reportedly showed only Americans. The second video was a welcoming address by then-United States President [[George H. W. Bush]] in which he closed by cheering on the American side.

On the first morning of the competition, Azinger and [[Chip Beck]] were paired against Ballesteros and [[José María Olazábal]] in a foursomes match, an alternate shot event. Azinger and Beck accused Ballesteros of gamesmanship on account of his throat clearing during Beck's shots. Later in the same match, Azinger and Beck, who were playing the same brand and make of ball but each with a slightly different model, switched their balls. While this switching was unlikely to have resulted in an advantage or to have been intentional, it was in violation of the "one ball rule" which was in effect for the competition. Under that rule, a player is prohibited from changing the type of ball he uses during the course of a match.

A few holes after the switch had occurred, Ballesteros called the Americans for the violation. Azinger, seeming to feel that his integrity was being questioned, said "I can tell you we're not trying to cheat." Ballesteros responded, "Oh no. Breaking the rules and cheating are two different things." As the violation was called too long after it had occurred, no penalty was assessed against the American pair. The constant goading between Ballesteros and Azinger intensified their respective desires to win. Out of that intensity, they and their playing partners produced what may be regarded as one of the best pairs matches in history, with the Spaniards winning 2 & 1. After the matches concluded, Ballesteros reportedly said, "The American team has 11 nice guys. And Paul Azinger."

The 1991 matches received the sobriquet "the War on the Shore" after some excitable advertising in the American media, and intense home-team cheering by the American home crowds. For his part, [[Corey Pavin]] caused controversy by sporting a ''[[Desert Storm]]'' baseball cap during the event in support of the U.S. and coalition war effort in Iraq.

The matches culminated in one of the single most dramatic putts in the history of golf. With only one match remaining to be completed, between Hale Irwin for the United States and Bernhard Langer for the Europeans, the United States team led by one point. Irwin and Langer came to the last hole tied. To win the cup, the American team needed Irwin to win or tie the match by winning or tying the hole. The Europeans could keep the cup with a win by Langer. Both players struggled on the hole, and found themselves facing a pair of putts; Langer had a six-foot, side-hill par putt, and Irwin had a generally uphill, 18-inch putt for bogey. To the surprise of his teammates, Langer conceded Irwin's bogey putt, leaving himself in a must-make position. Langer missed his putt, the match was halved, and the U.S. team took back the cup.

Players on both sides were driven to public tears by the pressure of the matches on the final day. The intense competition of the 1991 Ryder Cup is widely regarded as having elevated public interest in the series.