It is important to understand that the Saudi Arabia-led military coalition is providing military assistance to Yemen based on an official request from its internationally recognised government headed by President Hadi to counter the violence of the Houthi terrorist groups. The UN Security Council, in its Resolution 2216, imposed an arms embargo on Houthi terrorists and categorically placed the onus on the rebels to end any provocations or threats to neighbouring States, release all political prisoners and end the recruitment of children. The Kingdom of Saudi Arabia did not want a war in Yemen but was forced to after the coup by the Houthi militia against the legitimate and internationally recognised government and UN-supported peace process.
Iran is supporting and arming the Houthi militia with suicide drones, mines and ballistic missiles in violation of UNSC resolution 2216. We have intercepted Iranian ships carrying weapons, including missiles, to the Houthi rebels in Yemen. Saudi Arabia will continue working with its regional coalition partners as well as the UN and friends and allies towards achieving a cohesive and acceptable political solution to the crisis in Yemen, and compelling the forces that are instigating the issue to come to the negotiation table as soon as possible in order to alleviate the problems of the civilian population of Yemen who are becoming hapless victim of the Houthi terrorist militia.
Source : https://www.thehindu.com/todays-paper/tp-national/saudi-arabia-forced-to-act-saud-al-sati/article24694211.ece