Early AKP policies were reformist and appeasing. In 2011, Kurdish independents candidates won 6.6% of the votes and 35 parliament seats while the 2013 Turkey's Solution process greatly in South-Eastern Turkey. Lower incomes and lower literacy have been observed for decades in Turkey's South-Eastern provinces, causing higher demographic dynamism and raising political weight for Kurds. On 7 June 2015, following largely successful ceasefire period thanks to the government and the rebels efforts, the June 2015 Turkish general election provides major +6.5% gain to the HDP collecting 13.1% of national votes and a notable decrease for AKP, gathering 41% of votes or a -9% evolution. This electoral success has been called the "Kurdish miracle" and deprived the AKP of its majority previously maintained since 2002. On 20 July 2015, ISIS lead the 2015 Suruç bombing, killing 32 Kurdish volunteers. PKK elements accused Turkey of supporting ISIS and being complicit of the bombing. It has been argue that ISIS willfully wanted to put pressure on the Turkey-Kurdish peace process and succeeded in its aim to stir conflict between them.
Incident
On 22 July 2015, two police officers are assassinated by unidentified men. Soon after, 9 Turkey Kurds are anonymously denounced as the killers, arrested and accused of assassinations under PKK orders.
Authorship and command
Authorship was first claim by PKK's armed wing HPG, describing it as a retaliation following the prior Suruç bombing. The claim suggesting PKK-related killers. The claim was soon countered by higher PKK authorities: a week after, the Kurdistan Communities Union spokesman Demhat Agit said that the PKK was not officially involved, saying "these units independent from the PKK. They are local forces which organized themselves and not affiliated with us."
Executive reaction
On 24 July 2015, Erdogan government simultaneously orders Turkish Policelarge scale internal operations while the Turkish military begins a large-scale military Operation Martyr Yalçın against PKK and ISIL. As a result of attacks by the Turkish army, the PKK officially announces the resumption of full-scale hostilities. The collapse of the ceasefire have been linked to the poor performance at the June election.
Impact
On 24 August, President Erdogan of AKP called for snap election. HDP leadership accused the ruling AKP of orchestrating nationalist attacks against them, HDP volunteers facing a "campaign of lynching" with HDP offices being attacked, in one instance 200 times in 2 days. As fight increased, military curfew was imposed in 100 areas in South-Eastern Turkey, most notably in Cizre's 2015 clashes. HDP accused the ruling AK Party of looking to reignite war with PKK and stoke unrest to revive nationalist support ahead of the 1 November election. On 1 November 2015, the November 2015 Turkish general election provides a major gain to the AKP and decrease for HDP. The HDP narrowly hovering the 10% election threshold needed to win seats. The low score of the HDP has been linked to the renewal of violence and fear of IS attacks on HDP political rallies.
Trial and acquittal of the 9 suspects
In March 2018, all 9 PKK suspects in the July 2015 killing the two Turkish policemen in Ceylanpınar, which lead AKP to denounce the peace process and resume war, were acquitted by the Turkey Court as no substantial evidence was provided. On 16 April April 2019, the 9 suspected PKK operatives' acquittal is upheld by a Higher Court. No suspect have been confirmed for the 22 July 2015's casus belli.