21. To make matters worse, African-Americans who had fled north already were being used as strike breakers . 22. Relations between the races rapidly deteriorated, leading to the riot that ended the use of black strike breakers . 23. The Wobblies were also winners of this strike, because they had been a part of the strike breakers . 24. Labor groups had warned Clinton that they might withhold a 1996 endorsement without presidential action on a strike breaker policy. 25. Dubai said Saturday it will stop a harbor company from training alleged Australian strike breakers while it investigates the case. 26. In July a union miner was killed by mine guards, and the tension between strikers and strike breakers grew. 27. To break or prevent strikes, the coal companies hired strike breakers , mainly from Mexico and southern and eastern Europe. 28. As they had done in a strike in Coeur d'Alene seven years earlier, soldiers acted as strike breakers . 29. There were many violent incidents, including the burning of trains at Orlando Power Station and the murder of strike breakers . 30. About 40 strikers are picketing Esso's Longford heliport in an attempt to stop Esso Flying strike breakers to the rigs.