Who is responsible for igniting the war again in Yemen

With the confirmation that political negotiations have reached a dead end, Yemen is facing a new turning point that portends the return of military escalation on the fronts, but there remain questions about who bears responsibility for the war and its direction?
Exclusive – Al-Khabar Al-Yemeni:
Until October 2023, the Yemeni-Saudi negotiations were one step away from announcing a final agreement that would end years of confrontation, but America threw all its weight then to stop the signing in the last moments, according to statements by participating officials in the negotiations, to link the course of peace in Yemen to stopping Yemeni operations in support of Gaza.
Although Saudi Arabia, the weaker party in the signing equation, showed some neutrality during the battle that lasted for more than a year, and in which America and Britain entered militarily in an attempt to support the occupation on the Red Sea front, it was counting on changing its faltering fortunes in the previous years of confrontation.
Today, with Yemen’s decision to de-escalate in compliance with the agreement to stop the war and lift the siege on Gaza, it was supposed that the regional and international parties would push to resume the Yemeni-Saudi negotiations, but the opposite has happened. With Trump’s return to the White House, its most prominent decision was to reclassify the Ansar Allah movement in Yemen as a terrorist organization, for no goal other than to cut off the path to any political settlement.
The American didn’t stop at the limits of the classification, which includes freezing funds and accounts and hindering aid, but extended to mobilizing in the region, either through pressure on the regional mediator to close the only diplomatic window or to push the other parties to the war to re-form alliances for war again on Yemen.