Between August 1969 and March 1972, the British government focused on reforming but maintaining unionist-majority rule at Stormont to appease both unionists and nationalists. Fear of provoking a civil war and getting entangled in Northern Irish politics - which counted for little at Westminster - explains the British government’s reluctance to attempt significant reforms prior to 1972. In addition, Edward Heath’s government was reluctant to negotiate and grant significant concessions to violent opponents of the state. Yet allowing Stormont to delay and dilute reforms and to influence British security policy dragged the British Army into conflict with the nationalist population. As nationalist anger increased, the non-violent Social Democratic and Labour Party (SDLP) pulled out of Stormont in the summer of 1971. IRA activities increased. Escalating violence eventually forced the British government to suspend Stormont and assume direct rule. By March 1972, the British government had realised that the IRA could not be militarily defeated, and tried instead to reduce violence to 'an acceptable level' to enable political solutions to emerge. But IRA violence continued and influenced both the SDLP and British government to talk to the IRA in June 1972.