The phrase "sustained ceasefire" is correct and usable in written English.
It can be used in contexts discussing ongoing peace agreements or efforts to halt hostilities in conflict situations.
Example: "The two nations have agreed to a sustained ceasefire, allowing humanitarian aid to reach affected areas."
Alternatives: "prolonged ceasefire" or "continuous ceasefire."
Their sustained ceasefire, the silence of their guns, was evidence of that.Why nothing more?
A sustained ceasefire could be a major step towards a larger peace deal to end the three-year war, which is believed to have killed tens of thousands of people and brought millions of Yemenis to the brink of starvation.
It may be a tough sell, even in the event of a sustained ceasefire, for refugees fearful of giving up security outside the country to return to live under Assad's rule.
The UN said its first priority was to sustain the ceasefire.
Although the AU team led by former South African president Thabo Mbeki has won both sides' agreement in principle to cease firing, Unmis is so weak and discredited that its capacity to sustain a ceasefire is doubtful.
Humanitarian ceasefire and access to Syrian civilians urgently needed – aid agencies NEW YORK, 10 February 2016 -160 humanitarian agencies are appealing for immediate ceasefire and unimpeded, sustained access to bring lifesaving relief to those affected by worsening violence in Syria.
Following a brief ceasefire in the region, sustained shelling resumed Saturday and by 7 45 p.m. local time, more than 500 people — the majority of them women and children — had reached medical centers with symptoms consistent with exposure to chemicals such as excessive oral foaming, cyanosis, corneal burns, respiratory distress, and the emission of a chlorine-like odor.
This battlefield action, rather than Sadr's ceasefires, had deepened and sustained the lull in Iraq's violence this summer, Petraeus argued.
The Syrian government has yet to confirm its agreement, and there have been widespread doubts as to whether a ceasefire can take hold or be sustained.
Forces there have been under sustained attack from pro-Russian rebels, despite the ceasefire agreement signed last week.
In May, the Syria International Support Group, which includes Russia, China, the Arab League, European nations, and the U.S., endorsed another ceasefire and pledged to "ensure full and sustained humanitarian access in Syria".
