Tillerson will be replaced by a lower-level official at the NATO meeting on April 5-6, a development that will likely fuel new concerns about US President Donald Trump's commitment to the alliance as he pushes for better ties with Moscow.
"Tom Shannon (the US Under Secretary of State) will represent the United States at the NATO Foreign Ministerial," the US official told AFP on condition of anonymity.
"He has already met with officials from Ukraine. After these consultations and meetings, in April he will travel to a meeting of the G7 in Italy and then on to meetings in Russia," the official said.
Under president Barack Obama's administration, NATO sought to shore up support for the pro-western government in Kiev after Russia's annexation of Crimea and its support for an uprising in eastern Ukraine.
But during his election campaign, Trump expressed admiration for Russian President Vladimir Putin and said he would seek better ties with his government, while in January he dismissed NATO as "obsolete."
But Pence said that Trump expects NATO allies to make real progress by the end of this year toward meeting the increased defence spending target agreed by the alliance.
NATO chief Jens Stoltenberg travelled to Washington on Monday for the first time since Trump was elected, and will hold talks with members of the US-led coalition working to defeat the Islamic State group.
The Trump administration has sought to involve NATO more in fighting the jihadists.
Disclaimer: No Business Standard Journalist was involved in creation of this content
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
