EU admits sanctions can’t be forced on third countries—while Russia and Serbia hunt new waivers

The European Union’s sanctions chief David O’Sullivan told Kyiv Independent that Brussels cannot compel third countries to comply with Russia-related sanctions because they are not mandated by the UN and are not legally binding under international law. He framed the EU’s leverage as “moral and economic force,” implying that enforcement depends on the cohesion of an anti-Russia coalition rather than on universal legal authority. In parallel, a Russian diplomat, Alexander Trofimov, argued that Moscow is seeking to nullify the effect of Western sanctions by building alternative interaction mechanisms with partners that are “immune” to Western control. The cluster also shows the practical channeling of this strategy through energy: Serbia’s Russian-owned NIS is seeking another sanctions waiver from the United States, highlighting how exemptions can keep flows and revenues alive even under tightening restrictions. Strategically, the EU’s admission shifts the debate from legality to coalition management, raising the risk that sanction effectiveness will vary by jurisdiction and by the willingness of non-aligned states to absorb secondary pressure. Russia’s push for “alternative mechanisms” signals an attempt to reduce Western leverage by rerouting trade, payments, and counterpart relationships into structures less exposed to U.S.-led compliance regimes. Serbia’s waiver request underscores that European security politics and Balkan energy economics remain entangled: Belgrade can pursue limited accommodation with Washington while maintaining commercial ties with Russian-linked assets. The immediate beneficiaries are likely Russia-linked intermediaries and sanctioned asset operators that can exploit legal and administrative gaps, while the losers are the Western coalition’s ability to impose uniform constraints across third countries. Market implications concentrate in energy and sanctions-sensitive trade finance. NIS’s effort to secure a U.S. waiver suggests continued access—at least partially—to refined products, crude handling, and downstream margins tied to Serbia’s oil sector, which can dampen disruption risk for regional supply chains. For investors, the story reinforces that sanctions are not a single on/off switch but a patchwork of waivers, legal interpretations, and compliance workarounds, which can translate into uneven risk premia for Balkan energy equities and for companies with Russia-linked ownership structures. In FX and rates terms, the most direct sensitivity is likely to appear in regional risk spreads and in the pricing of hedging demand for energy-linked exposures rather than in a single global benchmark move; however, any renewed waiver approvals can reduce tail risk for local cash flows. The broader commodities read-through is that crude and refined product flows may remain resilient in pockets, limiting the magnitude of any sanctions-driven supply shock. What to watch next is whether the U.S. grants or denies additional waivers for NIS and whether Washington tightens the criteria for future exemptions, since that decision will determine how much “workable space” remains for Russia-linked energy assets in the Balkans. Monitor EU internal messaging and any follow-on statements that clarify whether O’Sullivan’s legal framing will be used to adjust enforcement expectations with member states and partners. On the Russian side, track announcements about new “alternative mechanisms” for sanctioned interaction, especially if they involve payment rails, shipping/insurance arrangements, or third-country intermediaries. Finally, watch for coalition signals: if additional non-UN-mandated sanctions are challenged publicly by third countries, the EU may face a more fragmented compliance landscape, increasing volatility in sanctions-related market pricing over the coming weeks.

Geopolitical Implications

• 01

  Sanctions effectiveness may fragment without UN mandate, increasing coalition-management challenges for the EU.

• 02

  Russia is likely institutionalizing workarounds that reduce Western leverage across third countries.

• 03

  Waiver-driven continuity in Balkan energy can preserve Russian-linked influence and complicate EU alignment.

• 04

  Western policy may shift toward targeted enforcement as exemptions become a key pressure valve.

Key Signals

• —U.S. decision on additional NIS waivers and any tightening of waiver criteria.
• —EU follow-up messaging on how it expects third-country compliance to work in practice.
• —Evidence of Russia-backed alternative payment/shipping/insurance arrangements.
• —Public challenges by other third countries to the legality or scope of sanctions.