本周在波兰，美国总统乔·拜登将强调北约支持乌克兰的重要性在周一突访基辅后在…的前夕俄罗斯入侵一周年。
国家安全委员会发言人约翰·柯比(John Kirby)上周对记者表示，拜登在波兰华沙期间的主要信息预计将集中在西方盟友对乌克兰的继续支持上，直到周三。
奥巴马总统计划于周二会见波兰总统安杰伊·杜达，讨论华盛顿和华沙之间在援助基辅方面的合作，特别是波兰作为向乌克兰提供军事和财政援助的重要中转站的角色。
“两位领导人还将讨论波兰在帮助美国向乌克兰运送军事和人道主义援助方面的重要后勤作用，这些援助不仅来自美国，也来自我们的盟友和伙伴，”柯比上周表示。“总统还将有机会感谢波兰如何接待了越来越多的美国军队，包括那些永久驻扎的军队和那些作为我们部队态势调整的一部分部署到欧洲的军队。”
柯比说:“随着入侵一周年的临近，我们可以自豪地说，我们对乌克兰的支持仍然坚定不移，我们支持乌克兰的联盟和国际联盟比以往任何时候都更加强大。”。
拜登在基辅重申了这一点，他说，此前未宣布的访问显示了“对乌克兰民主、主权和领土完整的坚定不移的承诺。”
同样在周二，拜登将在华沙发表公开讲话，详细阐述美国领导的向乌克兰提供必要援助以应对俄罗斯入侵的努力。白宫表示，他的演讲将涉及“美国如何团结世界支持乌克兰人民捍卫他们的自由和民主，以及我们将如何继续与乌克兰人民站在一起，只要需要。”
一天后，总统将会见所谓的布加勒斯特九国首脑。布加勒斯特九国是北约的东部集团。
柯比说:“这些主要是北约东翼盟国，坦率地说，他们现在基本上处于我们集体防御的前沿。”。
这些领导人也是最直言不讳地表示需要帮助乌克兰抵御俄罗斯军事力量的人之一，一些人警告说，俄罗斯总统弗拉基米尔·普京可能会着眼于入侵其他东欧国家——包括北约成员国——与此同时，俄罗斯官员表示，他们认为西方的支持是对自己的挑衅。
据随行记者报道，拜登周日晚间首先抵达波兰，然后前往乌克兰，与乌克兰总统弗拉基米尔·泽伦斯基(Volodymyr Zelenskyy)进行约五个小时的访问，这是他自去年俄罗斯入侵以来的首次访问。
“一年后，基辅站起来，乌克兰站起来。周一，拜登与泽伦斯基并肩说道。“美国人民与你们站在一起，世界与你们站在一起。”
“这是四分之三个世纪以来欧洲最大的陆地战争，除了你自己的期望，你正在取得成功，”他补充道。"我们完全有信心你会继续获胜。"
然而，尽管拜登成功访问了基辅，但在预计俄罗斯将发动大规模进攻之前，华盛顿和大西洋两岸关于向乌克兰提供何种援助的辩论仍在激烈进行。
去年11月以多数票当选的众议院共和党人承诺，将推动美国对乌克兰援助的问责制，并将其描述为“空白支票”心态的终结。共和党会议中的一些人推动采取更强硬的路线，撤回资金和物资供应，尽管两党领导人都拒绝了这一点。
自拜登政府开始执政以来，美国总共承诺向乌克兰提供300亿美元的安全援助，其中包括自俄罗斯入侵以来提供的293亿美元。这包括发送越来越复杂的弹药，从毒刺防空系统和标枪反装甲系统到最近的榴弹炮，很快还有艾布拉姆斯坦克。
然而，现在泽伦斯基正在推动美国允许F-16战斗机和远程导弹被送往乌克兰，这是拜登此前似乎不愿承诺的事情。
泽伦斯基曾表示，这些飞机可能有助于战斗，英国首相里什·苏纳克本月早些时候表示，“没有什么是不可行的”，并表示英国将开始在北约标准的飞机上训练乌克兰飞行员。
在华盛顿，拜登政府也强调了良好培训对任何特定系统的重要性。
国务卿安东尼·布林肯在周日接受美国广播公司“本周”采访时，拒绝直接回答可能派遣F-16战机的问题。
“我们正与乌克兰人进行非常密切的合作和协调，正是在这个问题上，他们在任何特定时间都需要什么。但是，非常重要的是:我们任何人都不应该专注于任何特定的武器系统，因为武器系统本身虽然重要，但还不够。你必须确保乌克兰人接受了正在提供的系统的培训，”他说。
拜登将于周三从波兰返回白宫。
Biden's message in Poland on eve of Ukraine war anniversary: 'Our support ... remains unwavering'
This week in Poland, President Joe Biden is set to underscore the importance of NATO's support for Ukraine after making a surprise visit to Kyiv on Monday on the eve of the one-year anniversary of Russia's invasion.
Biden's chief message while in Warsaw, Poland, until Wednesday is expected to center around continued backing from western allies for Ukraine, National Security Council spokesperson John Kirby told reporters last week.
The president is scheduled to meet with Polish President Andrzej Duda on Tuesday to discuss cooperation between Washington and Warsaw to aid Kyiv, particularly over Poland's role as a key staging ground for military and financial aid flowing to Ukraine.
"The two leaders will discuss Poland's important logistical role as well in helping the U.S. facilitate deliveries of military and humanitarian assistance to Ukraine from not only the United States but from our allies and partners," Kirby said last week. "The president will also have a chance to thank Poland for how they have hosted now an increased number of U.S. forces, including those that are permanently stationed and those who were deployed to Europe as part of our force posture adjustments."
"As we approach the one-year mark since this invasion, we can proudly say that our support for Ukraine remains unwavering and our alliances and our international coalition in support of Ukraine remain stronger than ever," Kirby said.
Biden echoed that while in Kyiv, a previously unannounced visit which he said showed "unwavering and unflagging commitment to Ukraine's democracy, sovereignty and territorial integrity."
Also on Tuesday, Biden will deliver public remarks in Warsaw detailing U.S.-led efforts to arm Ukraine with assistance needed to respond to Russia's invasion. The White House says his speech will address "how the United States has rallied the world to support the people of Ukraine as they defend their freedom and democracy, and how we will continue to stand with the people of Ukraine for as long as it takes."
One day later, the president will meet with heads of state of the so-called Bucharest Nine, who comprise NATO's eastern bloc.
"These are largely the group of eastern flank NATO allies who are basically and, quite frankly, literally on the frontlines of our collective defense right now," Kirby said.
Those leaders have also been among the most vocal about the need to help Ukraine fend off Russia's military, with some warning that Russian President Vladimir Putin could have his eyes set on invading other eastern European countries -- including NATO members -- at the same time that Russian officials have signaled they view the West's support as its own provocation.
Biden first landed in Poland late Sunday, according to reporters traveling with him, then set off for to Ukraine for his roughly five-hour visit with Ukrainian President Volodymyr Zelenskyy, his first since Russia's invasion last year.
"One year later, Kyiv stands and Ukraine stands. Democracy stands," Biden said alongside Zelenskyy on Monday. "The Americans stand with you, and the world stands with you."
"This is the largest land war in Europe in three quarters of a century, and you're succeeding against all and every expectation except your own," he added. "We have every confidence that you're going to continue to prevail."
Yet despite Biden's successful trip to Kyiv, debate continues to rage in Washington and across the Atlantic over what kind of aid to provide Ukraine ahead of what is anticipated to be a major offensive from Russia.
House Republicans, who were elected to the majority in November, have pledged to push for accountability for U.S. assistance to Ukraine, describing it as an end to a "blank check" mentality. Some in the GOP conference have pushed for a harder line to pull back on sending money and supplies, though leaders in both parties have rejected that.
In total, the United States has committed $30 billion in security assistance to Ukraine since the beginning of the Biden administration, including more than $29.3 billion since the beginning of Russia's invasion. That has included sending increasingly complex munitions, from Stinger anti-aircraft systems and Javelin anti-armor systems to most recently Howitzers, and soon, Abrams tanks.
Now, though, Zelenskyy is pushing for the U.S. to allow F-16 fighter jets and longer range missiles to be sent to Ukraine, something that Biden has previously seemed reluctant to commit to.
Zelenskyy has said the jets could be instrumental in the fight and British Prime Minister Rishi Sunak said earlier this month that "nothing is off the table" and said the U.K. will begin to train Ukrainian pilots on NATO-standard aircraft.
In Washington, the Biden administration has also emphasized the importance of good training over any particular system.
Secretary of State Antony Blinken declined to answer directly, in an interview on ABC's "This Week" on Sunday, about possibly sending F-16s.
"We're in very close collaboration and coordination with the Ukrainians precisely on this question of what do they need at any given time. But what's very important is this: What we should not do, any of us, is to focus or get fixated on any particular weapons system because the weapon system itself, as important as it is, is not sufficient. You have to make sure that Ukrainians are trained on the systems that are being provided," he said.
Biden returns to the White House from Poland on Wednesday.
