Protestants march in Londonderry , a predominantly Catholic city . The Troubles pitted mostly Catholic republicans , who want the province to become part of the Republic of Ireland , against pro-British loyalists , who are mostly Protestant . Masked youths attack police vehicles . - June 12 : A bomb explodes outside the home of British Prime Minister Margaret Thatcher at her constituency office in West Drayton, Buckinghamshire.
Protestants march in Londonderry , a predominantly Catholic city . Masked youths attack police vehicles . - June 12 : A bomb explodes outside the home of British Prime Minister Margaret Thatcher at her constituency office in West Drayton, Buckinghamshire.