A/HRC/29/52 78. The commission’s investigations also raise the issue of why the Israeli authorities failed to revise their policies in Gaza and the West Bank during the period under review by the commission. Indeed, the fact that the political and military leadership did not change its course of action, despite considerable information regarding the massive degree of death and destruction in Gaza, raises questions about potential violations of international humanitarian law by these officials, which may amount to war crimes. Current accountability mechanisms may not be adequate to address this issue. 79. With regard to Palestinian armed groups, the commission has serious concerns with regard to the inherently indiscriminate nature of most of the projectiles directed towards Israel by these groups and to the targeting of civilians, which violate international humanitarian law and may amount to a war crime. The increased level of fear among Israeli civilians resulting from the use of tunnels was palpable. The commission also condemns the extrajudicial executions of alleged “collaborators”, which amount to a war crime. 80. The Palestinian authorities have consistently failed to ensure that perpetrators of violations of international humanitarian law and international human rights law are brought to justice. The commission is concerned that continuing political divisions contribute significantly to the obstruction of justice for victims of violations by Palestinian armed groups. The absence of measures to initiate criminal proceedings against alleged perpetrators calls into question the stated determination of the Palestinian Authority to achieve accountability. In accordance with their legal obligations, the authorities must take urgent measures to rectify this long-standing impunity. 81. Comprehensive and effective accountability mechanisms for violations allegedly committed by Israel or Palestinian actors will be a key deciding factor of whether Palestinians and Israelis are to be spared yet another round of hostilities and spikes in violations of international law in the future. B. Recommendations 82. The persistent lack of implementation of recommendations – made by previous commissions of inquiry, fact-finding missions, United Nations treaty bodies, special procedures and other United Nations bodies, in particular the Secretary-General and OHCHR – lies at the heart of the systematic recurrence of violations in Israel and the Occupied Palestinian Territory. Bearing in mind this wealth of guidance, the commission will not elaborate an exhaustive list of recommendations, which would repeat concerns registered by other bodies. Rather, it calls upon all duty bearers to implement fully all recommendations made by the above-mentioned bodies without delay in order to avert a crisis similar to that of summer 2014 in the future. 83. The commission calls upon all parties to fully respect international humanitarian law and international human rights law, including the main principles of distinction, proportionality and precaution, and to establish promptly credible, effective, transparent and independent accountability mechanisms. The right of all victims to an effective remedy, including full reparations, must be ensured without further delay. In this context, the parties should cooperate fully with the preliminary examination of the International Criminal Court and with any subsequent investigation that may be opened. 84. The commission also calls upon Israelis and Palestinians to demonstrate political leadership by both refraining from and taking active steps to prevent 20