As talks continue, our experts profile those seeking a deal for the US, Russia and Ukraine.

Earlier this week, representatives of the United States, Russia and Ukraine met in Abu Dhabi to try and find consensus on ending nearly four years of war after Russia invaded Ukraine.

As talks continue, our experts have written about who is negotiating the potential peace deal for the US, Russia and Ukraine .

Ukraine war latest: Russia contradicts Trump on peace talks

Who is US army secretary Dan Driscoll?

By Mark Stone , US correspondent

As army secretary, Dan Driscoll is one of the top civilians within the Pentagon.

He leads the US Department of the Army, one of the three military departments within the Department of War (formerly the Department of Defence, before Donald Trump's rebrand).

In the hierarchy, he sits just under Pete Hegseth, the secretary of war, but the speculation in Washington is that there is tension between the two of them.

Mr Hegseth can't fire or purge Mr Driscoll, though, because he is a close friend of the vice president.

He and JD Vance were at Yale together and Mr Trump likes him.

Unusually for a Trump official, he also enjoys bipartisan popularity.

It was Mr Driscoll who was sent to present the 28-point plan to Ukrainian President Volodymyr Zelenskyy in Kyiv last week.

Who is Russian envoy Kirill Dmitriev?

By Ivor Bennett , Moscow correspondent

A key figure on the Russian side is Kirill Dmitriev, Vladimir Putin's investment envoy, who seems to have developed a close relationship with Mr Trump's envoy Steve Witkoff in particular.

Whenever the American envoy is in Moscow, Mr Dmitriev is never far away.

The 50-year-old was born in Ukraine, and later educated in the US at Stanford and Harvard.

A trained economist, he previously worked as an investment banker at Goldman Sachs and had a job with the consultancy firm McKinsey.

In 2011, he became head of Russia's sovereign wealth fund, and that's when he began to climb the Kremlin ladder.

Personal connections may have aided his rise - his wife works closely with one of Mr Putin's daughters.

And when it comes to dealing with America, he has long been Mr Putin's point man.

In 2016, he led Moscow's early contacts with the first Trump administration, and he's been at the vanguard once again now.

The initial 28-point peace plan, which heavily favoured Russia, was reportedly the result of a Miami meeting between Mr Witkoff, Mr Dmitriev and Mr Trump's son-in-law and informal adviser Jared Kushner in October.

Who is Ukrainian commander Lieutenant General Kyrylo Budanov?

By Deborah Haynes , security and defence editor

Lieutenant General Kyrylo Budanov is one of Ukraine's top commanders and one of the country's youngest.

At just 39, he's led the Ukrainian military intelligence service - or GUR - since before Russia's full-scale invasion.

But Lt Gen Budanov has been waging covert operations against Russian forces since Vladimir Putin first targeted Ukraine in 2014.

In that time, Lt Gen Budanov has been wounded on three occasions in battle, received awards for courage and even survived an assassination attempt.

His wife has also been targeted in a poisoning. She too survived.

A close ally of Volodymyr Zelenskyy, Lt Gen Budanov was once touted as a potential candidate to become defence minister.

But he has stayed in his intelligence role, overseeing top secret operations, including a major ongoing mission to develop and deploy long-range drones loaded with explosives that are being launched against military and energy targets deep inside Russia.

Wanted by Russia over an attack against a large bridge that links Crimea to Russia in 2022, Lt Gen Budanov's selection to take part in peace talks in Abu Dhabi with American and Russian officials may not be particularly welcomed by Moscow.

Still, it is a sign that this Ukrainian general is one to watch.

随着谈判持续进行，我们的专家分析了为美国、俄罗斯和乌克兰寻求协议的相关人士。

本周早些时候，美国、俄罗斯和乌克兰的代表在阿布扎比举行会晤，试图就结束俄罗斯入侵乌克兰近四年后的战争达成共识。

随着谈判的持续进行，我们的专家撰文分析了美国、俄罗斯和乌克兰三方参与潜在和平协议谈判的代表人选。

乌克兰战争最新动态：俄罗斯在和平谈判问题上与特朗普说法相矛盾

美国陆军部长丹·德里斯科尔是谁？

本报美国记者 马克·斯通 报道

作为陆军部长，丹·德里斯科尔（Dan Driscoll）是五角大楼最高级别的文职官员之一。

他领导着美国陆军部，这是战争部（唐纳德·特朗普更名前称为国防部）下属的三个军事部门之一。

在层级结构中，他的职位仅次于战争部长皮特·赫格斯（Pete Hegseth），但华盛顿的传闻称两人关系紧张。

不过，赫格塞思先生无法解雇或清除德里斯科尔先生，因为后者是副总统的密友。

他与J.D.万斯（JD Vance）曾同在耶鲁大学就读，且特朗普先生对他颇为赏识。

作为特朗普政府官员，他难得地赢得了两党的普遍欢迎。

上周，德里斯科尔先生被派往基辅，向乌克兰总统弗拉基米尔·泽连斯基提交了28点计划。

俄罗斯特使基里尔·德米特里耶夫是谁？

莫斯科记者艾弗·班尼特报道

俄方关键人物是弗拉基米尔·普京的投资特使基里尔·德米特里耶夫，他似乎与特朗普的特使史蒂夫·维特科夫建立了尤为密切的关系。

每当美国特使到访莫斯科，德米特里耶夫先生总会如影随形。

这位50岁的老人出生于乌克兰，后在美国斯坦福大学和哈佛大学接受教育。

作为一名受过专业训练的经济学家，他曾在高盛集团担任投资银行家，并任职于咨询公司麦肯锡。

2011年，他出任俄罗斯主权财富基金负责人，自此开始攀爬克里姆林宫的权力阶梯。

人脉关系或许助推了他的晋升——他的妻子与普京总统的一位女儿关系密切。

在应对美国事务方面，他长期以来一直是普京先生的得力干将。

2016年，他主导了莫斯科与特朗普首届政府的早期接触；如今，他再次站在了最前沿。

据报道，这份最初包含28点内容、明显偏向俄罗斯的和平计划，源于10月份在迈阿密举行的一次会议。与会者包括维特科夫先生、德米特里耶夫先生以及特朗普的女婿兼非正式顾问贾里德·库什纳。

乌克兰指挥官基里洛·布达诺夫中将是谁？

作者：黛博拉·海恩斯（Deborah Haynes），安全与国防编辑

基里洛·布达诺夫中将（Kyrylo Budanov）是乌克兰最高级别指挥官之一，也是该国最年轻的将领。

年仅39岁的他，自俄罗斯全面入侵乌克兰之前便一直领导着乌克兰军事情报局（GUR）。

但自2014年弗拉基米尔·普京首次将矛头指向乌克兰以来，布达诺夫中将一直在对俄罗斯军队开展秘密行动。

在此期间，布达诺夫中将三度在战斗中负伤，因英勇表现多次获奖，甚至成功躲过了一次暗杀行动。

他的妻子也成为了投毒袭击的目标，所幸同样幸免于难。

作为弗拉基米尔·泽连斯基的亲密盟友，布达诺夫中将一度被视为国防部长的潜在人选。

但他仍担任情报职务，负责监督绝密行动，其中包括一项正在进行的重大任务——开发并部署装载爆炸物的远程无人机，这些无人机正被用于打击俄罗斯境内纵深的军事和能源目标。

布达诺夫中将因涉嫌参与2022年对连接克里米亚与俄罗斯的大型桥梁的袭击而被俄罗斯通缉，他此次获选参加阿布扎比美俄官员和谈的消息可能不会受到莫斯科方面的欢迎。

尽管如此，这仍表明这位乌克兰将军值得关注。