In the negotiations over the past two years, it is understandable that table 2 union members had no hesitation using their right to strike, which they had obtained on December 16, 1998. So, in a perfectly legal context, the union is exercising its means of pressure by holding rotating strikes across the country since January 18.
The strikes by the union members are illegal
( z1 legal :polarity - :ARG1 ( z2 strike :ARG0 ( z3 person :ARG0-of ( z4 have-org-role :ARG1 ( z5 union ) :ARG2 ( z6 member ) ) ) ) )