Final answer:
During his time as Prime Minister of Northern Ireland, Terence O'Neill implemented policies such as addressing grievances, making public gestures, and reforming the police force to improve community relations with nationalists.
Step-by-step explanation:
Terrance O'Neill, who served as the Prime Minister of Northern Ireland from 1963 to 1969, implemented a range of policies aimed at improving community relations with nationalists. One of O'Neill's key strategies was to adopt a more conciliatory approach towards the nationalist community. He made efforts to address their grievances and concerns, which included creating initiatives to combat discrimination in areas such as housing and employment.
O'Neill also made public gestures to demonstrate his willingness to engage with the nationalist community. For example, he visited nationalist areas and attended events and ceremonies important to nationalists. This helped to build trust and foster dialogue between the two communities.
Furthermore, O'Neill sought to reform the police force in Northern Ireland to address concerns about bias and discrimination. He established the Scarman Commission to investigate allegations of police misconduct and made efforts to increase the representation of Catholics within the police force.