The Detroit-based United Auto Workers Union has responded to Chrysler's announcements of 26,000 job cuts by saying its members' contracts with the giant automaker will be "fully enforced".  "The 'turnaround plan' announced yesterday by Chrysler Group underscores the importance of the job and income security protections we negotiated with DaimlerChrysler in 1999," said UAW president Stephen P. Yokich.