President Hadi returns to Aden after Saudi-backed government forces recapture the port city from Houthi forces and launch advance on Aden.
Leader of Al-Qaeda in Arabian Peninsula, Nasser al-Wuhayshi, killed in US drone strike in Yemen.
Islamic State carries out its first major attacks in Yemen – two suicide bombings targeting Shia mosques in Sanaa in which 137 people are killed.
Houthi rebels start to advance towards southern Yemen. President Hadi flees Aden.
Saudi-led coalition of Gulf Arab states launches air strikes against Houthi targets and imposes naval blockade.
Houthis appoint presidential council to replace President Hadi, who flees to Aden southern stronghold
Houthis reject draft constitution proposed by government.
Houthi rebels take control of the most of capital Sanaa.
President Hadi sacks his cabinet and overturns a controversial fuel price rise following two weeks of anti-government protests in which Houthi rebels are heavily involved.
Tribesmen blow up the country’s largest oil pipeline, disrupting supplies from the interior to a Red Sea export terminal.
Presidential panel gives approval for Yemen to become a federation of six regions as part of its political transition.
National Dialogue Conference winds up after ten months of deliberation, agreeing a document on which the new constitution will be based.
A Saudi diplomat and his bodyguard are shot dead in Sanaa. Security officials say the assailants, who opened fire on the diplomat’s convoy, were dressed in police uniforms.
Defence Minister Muhammad Nasir Ahmad survives car bomb attack in Sanaa that kills 11 people, a day after local al-Qaeda deputy head Said al-Shihri is reportedly dead in the south.
Abdrabbuh Mansour Hadi inaugurated as president after uncontested elections.
President Saleh agrees to hand over power to his deputy, Abdrabbuh Mansour Hadi. Unity government including prime minister from opposition formed.
US-born al-Qaeda leader Anwar al-Awlaki is assassinated by US forces.
After months of mounting protests, President Saleh is injured in rocket attack and flown to Saudi Arabia, returning home in September.
Tunisian street protests encourage similar demonstrations in other countries, including Yemen. President Saleh pledges not to extend his presidency in 2013 or to hand over to his son.
Global terror alert after packages containing explosives originating in Yemen are intercepted on cargo planes bound for the US.
Thousands flee government offensive against separatists in southern Shabwa province.
Government signs ceasefire with Houthi northern rebels, which breaks down in December.
Yemen-based branch of al-Qaeda claims it was behind failed attack on US airliner. The government calls on the West for more support to help it combat the al-Qaeda threat.
Saudi Arabia says it has regained control of territory seized by Yemeni rebels in a cross-border incursion.
The Yemeni army launches a fresh offensive against Shia rebels in the northern Saada province. Tens of thousands of people are displaced by the fighting.
Government announces release of 176 al-Qaeda suspects on condition of good behaviour.