Yemen crisis: who are the rebel groups and why are they fighting?
Local rebel groups are fighting for control of a country that could become the battleground for a wider war

Yemen is quickly descending into an all-out civil war between rebel factions and the ousted government. There are also fears that the conflict is beginning to serve as a larger proxy war between regional Shia and Sunni powers.
UN-brokered peace talks between the warring groups have failed, with mediator Jamal Benomar warning that the country is inching towards an "Iraq-Libya-Syria scenario". So who is involved in the fighting and why?
Key players in Yemen:
The ousted Sunni government
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Earlier this year, the US-backed President Abed Rabbo Mansour Hadi was forced to step down after rebel groups stormed the capital, leaving a power vacuum. As a result of this, the Yemeni President and his ministers had to flee to the southern stronghold of Aden. Hadi has since reclaimed his presidency but remains in hiding. His government has the support of military and police loyalists as well as a Sunni militia known as Popular Resistance Committees, according to the BBC.
The Houthis
The Shiite militia has been attempting to take control of the country since 2004 and is by far the strongest rebel force in the country. The group has "legitimate, long term grievances of economic and political disenfranchisement by the government," writes Martin Reardon for Al Jazeera. The Houthis have since expanded their control of the country, alarming foreign powers. Western and Saudi leaders allege that the group is receiving financial and military backing from Iran, a claim denied by Tehran.
The AQAP
The Yemen-based al-Qaeda in the Arabian Peninsula is considered to be the most dangerous branch of the terrorist group. It has been linked to several international terrorist plots and claimed responsibility for the Charlie Hebdo attacks in Paris.
The separatists
Since North and South Yemen were united in 1990, southern separatists have been fighting to become independent again. The decision to unite the two was "fraught from the start" and led to a civil war in 1994, according to The Economist.
Islamic State
"The picture is further complicated by the emergence in late 2014 of a Yemen affiliate of the militant group Islamic State (IS), which propounds an extreme version of Sunni Islam and seeks to eclipse AQAP," the BBC reports. IS militants recently claimed responsibility for two suicide bombings at mosques in Yemen's capital Sanaa, which killed at least 137 people. Both al-Qaeda and IS consider Shia Muslims to be heretics and have vowed further attacks against the Houthis.
So who's in charge?
"Even in the best of times, it's hard to tell if anyone is in control of Yemen," NPR says. The central government has long been in disarray, and different rebel groups control different parts of the country. In the north, the Houthis largely hold sway, while the separatists control much of the south. AQAP fighters meanwhile control swathes of rural territory from the south west to the north east.
Why does the conflict matter?
The US lost a key ally in the Arabian Peninsula when Hadi was pushed out, and the unrest that has followed will allow terrorist organisations in the region to expand unchecked, analysts warn. The conflict in Yemen has also "provided an opening for IS, which is keen to outflank al-Qaeda and prove itself the true defender of the faith," according to CNN. However, for the moment Islamic State remains a relatively "small player" in Yemen compared to al-Qaeda. The recent intervention of Saudi Arabia and its key regional allies risks further destabilisation in the Middle East. There are fears that the conflict could spiral into an international war, with Yemen becoming a battleground for Iranian and Saudi rivalries.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
-
Today's political cartoons - March 30, 2025
Cartoons Sunday's cartoons - strawberry fields forever, secret files, and more
By The Week US Published
-
5 hilariously sparse cartoons about further DOGE cuts
Cartoons Artists take on free audits, report cards, and more
By The Week US Published
-
Following the Tea Horse Road in China
The Week Recommends This network of roads and trails served as vital trading routes
By The Week UK Published
-
'Like a sound from hell': Serbia and sonic weapons
The Explainer Half a million people sign petition alleging Serbian police used an illegal 'sound cannon' to disrupt anti-government protests
By Abby Wilson Published
-
The arrest of the Philippines' former president leaves the country's drug war in disarray
In the Spotlight Rodrigo Duterte was arrested by the ICC earlier this month
By Justin Klawans, The Week US Published
-
Houthis vow retaliation amid US airstrikes
Speed Read Trump promises the US will use 'overwhelming lethal force' against the Houthis until they stop attacking Red Sea ships
By Peter Weber, The Week US Published
-
Ukrainian election: who could replace Zelenskyy?
The Explainer Donald Trump's 'dictator' jibe raises pressure on Ukraine to the polls while the country is under martial law
By Sorcha Bradley, The Week UK Published
-
Why Serbian protesters set off smoke bombs in parliament
THE EXPLAINER Ongoing anti-corruption protests erupted into full view this week as Serbian protesters threw the country's legislature into chaos
By Rafi Schwartz, The Week US Published
-
Who is the Hat Man? 'Shadow people' and sleep paralysis
In Depth 'Sleep demons' have plagued our dreams throughout the centuries, but the explanation could be medical
By The Week Staff Published
-
Islamic State: the terror group's second act
Talking Point Isis has carried out almost 700 attacks in Syria over the past year, according to one estimate
By The Week UK Published
-
Why Assad fell so fast
The Explainer The newly liberated Syria is in an incredibly precarious position, but it's too soon to succumb to defeatist gloom
By The Week UK Published