Former president and head of the General People's Congress, Ali Abdullah Saleh, threatened to begin the real war if the Saudi-led coalition does not end the military operation on Yemen.
At a meeting with the leadership of his party on Sunday, Saleh said, "I repeat what I have said once again: the battle has not started yet. If they don't choose peace, it will," according the Yemeni Khabar Agency.
He said the UN-backed president Abd Rabbuh Mansour Hadi and his government have no legitimacy.
The Saudi-led coalition has been bombing Yemen since March.
The intervention aims to restore the legitimacy of Hadi and the government who were ousts by the Houthi militants and forces loyal to Saleh.
Among his remarks, Saleh said if Yemen has to hold a dialog, it should not be with Saudi Arabia while affirming that there will not be more talks until the aggression stops, according to Khabar.
After the UN-sponsored talks between the Yemeni government and the Houthis and the GPC in Switzerland lately failed to produce a deal to end the conflict, the factions agreed to hold a new round of talks in mid January.
The UN is exerting major peace efforts in order to end the conflict which has left the country to face the worst humanitarian crisis in its history.
Around 82% of Yemen's population need basic humanitarian aid, 14 million lack access to healthcare after fighting destroyed and damaged most of the country's medical facilities and forced many others to shut down, according to data by the UN.
Some 19 million of the population lack access to safe water and the conflict has also displaced 2.5 million, the UN said.