Speaking during a tour of Eastern European nations, Biden urged European allies to use their influence and "promote a stable and positive environment" so Ukrainians can vote unhindered on Sunday.
"If Russia undermines these elections ... We must remain resolute and impose greater costs to Russia and (be) equally resolute to invest in the NATO alliance," Biden said after talks with Romanian President Traian Basescu.
The US and the EU have imposed travel bans and asset freezes on President Vladimir Putin's inner circle over Russia's annexation of Crimea and have threatened to target entire sectors of the Russian economy if Russia tries to grab more land from Ukraine.
Romania imports about one-fifth of its natural gas from Russia and has its own supplies in the northwest Transylvania region.
"We need to ensure that Russia can no longer use its energy resources as a weapon against anyone in the region," Biden said.
He sought to reassure Romania that it would be protected by NATO if it were attacked. "NATO nations never stand alone, we protect one another," Biden said.
The US has said the missile interceptors could be launched from Romania in case of a missile attack from the Middle East.
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
