The last year was the bloodiest ever in Yemen due to conflicts and grave developments including the Houthi takeover of the capital city of Sanaa in September.
On December 31, an Iranian military chief confessed his country has popular armies in some Arab countries including Houthis in Yemen. The statement confirmed an accusation by Yemeni governments that Houthis have been receiving all types of Iranian support.
Meanwhile, most of the developments have negatively affected the transition process raising concerns about the country's future coinciding with warnings of more conflicts.
Though Yemen continued to implement the 2011 Gulf Initiative for power transition, conflicts and security deterioration, deepening power vacuum and low economic growth have made the headlines throughout 2014.
The Houthi Militant Group has been fighting forces, tribal and political foes and Al-Qaeda, expanding by force seizing nine cities, derailing the transition course and triggering more rejection and armed resistance since early 2014.
In October, the group said 18.000 of its loyalists had been killed and injured in eight-month battles.
However, reliable sources said that figure was less than the real figure of Houthi casualties estimating more than 13.000 Houthis killed in all battles including the deadliest confrontations with Al-Qaeda militants in the Rada town in central Yemen.
There were also few thousands of national forces who were killed in clashes with Houthis and AQAP. The number of security and military officers and personnel killed and injured could be higher especially because the country saw a shocking rise in targeted killings.
Many other forces were killed in terrorist operations that hit record since the army launched the first offensive against AQAP militants in mid-2012.
In addition, Al-Qaeda has recently launched a wave of suicide operations of Houthi militants in several cities killing and wounding hundreds. On Wednesday, a suicide bomber exploded himself at a religious celebration by Houthis killing 26 and injuring more than 40 others.
There were not accurate statistics of casualties of tribesmen and civilians in all conflicts.
Observers argued that the failure of Yemeni factions in achieving real reconciliation, external meddling, counterrevolution by the former regime and the nature if the armed, tribal society were the main reasons for the deepening crisis and conflicts.
Abdulsalam Mohammed, head of the Abaad studies and research center, said conflicts and terrorism are the direct result of bids by some factions to destroy the state in favor of special and external projects.
"Yemenis have failed to eradicate terrorism because they have not addressed the real motive for it which include the replacement of dictator regimes with sectarian militias," Mohammed said. "Factions which destroyed the state and those which took advantage of the power vacuum should bear moral and legal responsibility so that Yemenis can put and end to all conflicts and violence," he added.
Moreover, observers said Yemen will experience further conflicts and chaos because of power struggle, continued takeover of the Houthi Group and what appears to be deliberate efforts to further deepen power vacuum.
Fuad Alsalahi, a political sociology professor at Sanaa University, said if such a situation continues, the state will completely erode, separation will be inevitable and then violence will flourish.
"Yemen needs a new faction which can dominate failed traditional forces so that a concrete change happens," he added.
The Houthi takeover has also inspired southern protests with people there saying the situation in the north has boosted their right of separation.
Najeeb Ghalab, a politics professor at Sanaa University, said Yemen is expected to experience a further division within the national forces with which the situation will worsen.
"The Houthi Group has seized power, looted public properties and is now seeking to inflame sectarian conflict and rule the country alone. Such acts and ambitions fuel tensions and violence," Ghalab said.