The horrific war in Syria continues to worsen and bleed beyond its borders. A cold calculation seems to be taking hold: that little can be done except to arm the parties and watch the conflict rage. The international community must not abandon the people of Syria and the region to never-ending waves of cruelty and crisis.

The death toll may now be well over 150,000. Prisons and makeshift detention facilities are swelling with men, women and even children. Deaths by summary executions and unspeakable torture are widespread. People are also dying from hunger and once rare infectious diseases. Whole urban centers and some of humankind's great architectural and cultural heritage lie in ruins. Syria today is increasingly a failed state.

The United Nations has tried hard to address the conflict's deep roots and devastating impact. Our humanitarian and other efforts are saving lives and reducing suffering. But our fundamental objective - an end to the conflict - remains unmet. The bleak prospects for peace have darkened further with the flare-up of violence and sectarian tensions in Iraq. The cohesion and integrity of two major countries, not just one, is in question.

The following six points can chart a principled and integrated way forward.

First, ending the violence. It is irresponsible for foreign powers to give continued military support to parties in Syria that are committing atrocities and flagrantly violating fundamental principles of human rights and international law. I have urged the Security Council to impose an arms embargo. The sides will have to sit across from each other again at the negotiating table. How many more people must die before they get there?

Second, protecting people. The UN continues to manage a huge humanitarian relief effort. But the government continues to impose unconscionable access restrictions; it has removed medical supplies from aid convoys and deliberately starved and collectively punished communities it regards as sympathetic to the opposition. Some rebel groups have acted similarly. Moreover, the international community has provided barely a third of the funding needed for the relief effort. I continue to appeal for an end to the sieges and for unfettered humanitarian access across internal frontlines and international borders.

Third, starting a serious political process. The warring parties systematically blocked the relentless initiatives of two of the world's leading diplomats, former UN secretary-general Kofi Annan and former UN and Arab League special envoy to Syria Lakhdar Brahimi. The presidential election earlier this month was a further blow, and failed to meet even minimal standards for credible voting. I will soon name a new special envoy to Syria to pursue a political solution and a transition to a new Syria. Regional countries have a special responsibility to help end this war. I welcome recent contacts between Iran and Saudi Arabia and hope that they will build confidence and reverse a destructive competition in Syria, Iraq, Lebanon and elsewhere. Syrian civil society groups are making courageous efforts to maintain the fabric of society and keep open channels of solidarity and communication.