January 2 - Yemeni army defectors accuse outgoing President Ali Abdullah Saleh of seeking to sabotage a power-transfer deal brokered by the Gulf Cooperation Council.
January 12 - At least 20 die in Sunni-Shia fighting in north Yemen.
January 17 - Vice President Abdurabu Hadi says that presidential and parliamentary elections planned for next month will go ahead.
January 20 - The Yemeni government modifies a new bill that would have granted legal immunity to aides of outgoing President Ali Abdullah Saleh.
January 22 - Yemeni President Ali Abdullah Saleh announces that he is to leave for treatment in the United States.
February 25 - An al-Qaeda suicide bombing claims at least 26 people in the city of Mukalla.
February 25 - Abd-Rabbu Mansour Hadi is sworn in as the new President of Yemen.
March
March 3 - At least three people are killed in a bombing that targeted a Republican Guard building in Badya.
March 5 - The death toll in a battle between the Yemeni Army and al-Qaeda on the outskirts of Zinjibar yesterday rises to over 130.
March 10 - Air raids in Bayda kill 10 al-Qaeda militants.
March 12 - The bodies of 70 ethnic Somali and Oromo people are discovered near the Yemeni-Saudi Arabian border.
March 18 - Two gunmen shoot dead an American working at a language school in Taez for spreading Christianity.
March 31 - Around 30 people are killed in clashes between the army and suspected al-Qaeda militants in southern Yemen.
April
April 6 - The new President of Yemen Abed Rabbo Mansour Hadi fires four governors and over a dozen military commanders including the half brother of former President Ali Abdullah Saleh who was head of the Yemeni Air Force.
April 7 - The airport at Sana'a is closed after forces loyal to General Mohammed Saleh al-Ahmar, the former Chief of the Air Force and half-brother of former President Ali Abdullah Saleh, threaten to attack aircraft.
April 20 - At least 18 deaths are reported by Yemen's defence ministry as a result of an army offensive intent on recapturing the capital of Abyan Governorate.
May
May 9 - Missile strikes kill eight militants near the al-Qaeda stronghold of Jaar.
May 10 - An airstrike reportedly kills five al-Qaeda militants in Jaar.
May 12 - The United States conducts two drone strikes in southeastern Yemen, killing 11 suspected al-Qaeda militants.
June
June 15 - The 2012 Abyan offensive ends with the last Al-Qaeda soldiers retreating from Abyan.