What ongoing conflicts remained unresolved after Trump left office in January 2021?

Checked on December 7, 2025
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Executive summary

After Donald Trump left office in January 2021, multiple international and domestic disputes that his team later claimed to have addressed remained at least partially unresolved — most notably the wars in Ukraine and Gaza, the longstanding Serbia–Kosovo impasse, the Armenia–Azerbaijan negotiations over Nagorno-Karabakh, and the DRC–Rwanda tensions — with reporting showing ceasefires or deals were often temporary, incomplete, or contested [1] [2] [3] [4]. Domestic legal and administrative conflicts tied to Trump-era actions — including hundreds of alleged conflicts of interest and numerous employment and prosecution challenges — also lingered into and beyond 2021 [5] [6].

1. Ukraine and Gaza — two major wars that stayed alive

Multiple outlets report that despite later claims of brokering peace, the wars in Ukraine and Gaza remained ongoing after Trump’s 2021 departure: Reuters and analysis cited by The Conversation and Axios show ceasefires and proposals did not produce lasting resolutions, and fighting in Gaza and the war in Ukraine continued to rage well beyond early 2021 [2] [1]. The available reporting stresses that Trump’s later interventions produced temporary pauses at best and lacked the enforcement or diplomatic buy-in needed for durable peace [2].

2. Serbia–Kosovo: normalization without a final settlement

The Trump administration’s earlier economic-normalization framework did not dissolve the deeper political dispute over recognition and sovereignty. Coverage notes the Washington-era agreements were limited in scope and tensions between Serbia and Kosovo persisted; the underlying national and territorial issues remained unresolved after January 2021 [1].

3. Armenia–Azerbaijan: a fragile deal with constitutional strings attached

Reporting shows the Armenia–Azerbaijan process remained stuck because Azerbaijan refused to sign a full peace treaty until Armenia adopted a new constitution — a step that could take years, leaving the conflict’s final status unresolved after 2021 [3]. Analysts warned that deals lacking robust security guarantees and local buy-in would not ensure long-term stability [3].

4. Democratic Republic of Congo–Rwanda: commercial carrots, continuing violence

The Washington-mediated framework between the DRC and Rwanda focused heavily on economic incentives and mineral supply-chain arrangements; journalists and analysts reported fighting continued despite the agreement and that the complex root causes — ethnic tensions, governance issues, displacement — received little real attention, so the conflict was not actually resolved after 2021 [3] [4].

5. Other regional ceasefires and the “ended wars” claim: temporary gains, contested credit

Across several items (Kosovo–Serbia, Cambodia–Thailand border incidents, and others Trump later listed), coverage finds that ceasefires or economic deals sometimes held short-term, but many of Trump’s claims to have “ended” wars were contested by fact-checkers and reporters who found limited evidence of durable resolution or clear U.S. leverage in each case [7] [1] [8].

6. Domestic legal and ethical conflicts that outlived the presidency

Civic groups and watchdogs documented thousands of alleged conflicts of interest tied to Trump’s refusal to divest and to administration appointments; Citizens for Responsibility and Ethics in Washington counted more than 3,700 such instances that raised ongoing questions after January 2021 [5]. Separately, Reuters reported many personnel actions and punishments carried out in Trump’s tenure were challenged in court or administrative appeals and remained unresolved beyond his presidency [6].

7. Why these outcomes were predictable: limits of deals without buy‑in

Analysts quoted in the reporting emphasize a pattern: quick, executive-driven agreements can produce headline-making ceasefires or economic pacts but lack the justice mechanisms, security guarantees, or regional ownership necessary for permanence. The Washington deals on resources-for-peace, for example, prioritized economic incentives and U.S. interests without addressing structural drivers of conflict, making impasse likely [3].

8. What reporting does not settle and where sources diverge

Sources agree that several diplomatic breakthroughs occurred, but they diverge on the durability and attribution of success: The Washington Post and BBC acknowledge U.S. mediation roles while fact‑checking outlets and regional analysts caution that many conflicts were only temporarily eased or remained contested [4] [8] [7]. Available sources do not mention a comprehensive list of every conflict unresolved as of January 2021; they focus on high-profile cases where later claims of “ending” wars were disputed [7] [1].

Limitations: this summary uses the provided reporting and does not attempt independent verification beyond those sources. Where the sources document continuing violence, contested credit, or unfulfilled treaty conditions, those are presented as factual per the cited coverage [3] [2] [1] [5] [6].

Want to dive deeper?
Which international conflicts escalated between 2017 and 2021 and persisted after January 2021?
How did U.S. foreign policy shifts under Trump affect ongoing wars and diplomatic standoffs by 2021?
What conflicts involving U.S. allies or partners remained unresolved in early 2021 (e.g., Syria, Afghanistan, Yemen, Ukraine)?
Which regional rivalries (e.g., Israel-Palestine, India-Pakistan, Iran-Saudi) were unresolved when Trump left office?
How did unresolved conflicts in 2021 influence Biden administration foreign policy priorities?