 Complete the following phrase:  The poor relations between the two states were hampered by disputes over sections of the border, which was not finally delimited until 1929. A subsequent commission set about conducting on-the-ground demarcation, however there were continuing disputes over certain sections of the boundary. These were allocated via a treaty signed on 27 February 1935, with a final border treaty being signed on 9 March 1936. Despite this, Dominican dictator Rafael Trujillo subsequently launched a wave of anti-Haitian violence in 1937, culminating in the 