Really? If the House of Saud could have handled the situation they would have deployed their ground troops into Yemen already. This isn't a Shock and Awe by the airstrikes. The Houthis knew the Saudis were going to come after them, because they want a different Shia as the leader of Yemen.
The Houthis are a faction of Shia who are 1/3 of Yemen's population. They were in continuous rebellion against the government since 64. The rebel leader was killed in 2004. And a truce was agreed to in 2011 with Yemeni President for 32 years Ali Abdullah Saleh.
The Arab Spring came around and the Houthis allied with the entire population of Yemen for a new regime. One that would protect minority rights, provided economic growth, and government with elected officials. Ali Abdullah Saleh's appointed successor, General Abd Rabbuh Mansur Hadi, wanted a federation of 6 states. Which would have divided the political groups against each other and only have helped the General.
The Houthis rebelled and gained support from units in the Yemeni Military. Confirmed reports are that units that were loyal to Ali Abdullah Saleh are fighting with the Houthis, and uncornfirmed report that US trained Yemeni Special Forces sided with the Houthis also. As do the majority of Yemeni citizens, who are sick of Gen. Hadi.
In January Gen. Abd Rabbuh Mansur Hadi resigned as President of Yemen, the Houthis then captured him in Sanaa and named a new transitional 5 member presidential council. Gen. Hadi was able to escape to Aden and to give the middle finger to the Houthis spread wide claims and reinstated himself as the President of Yemen. Now he's in Saudi Arabia.
There is no confirmed reports that Iran is supporting the Houthis, other than Gen. Hadi saying that Iran is supporting the Houthi once he landed in Saudi Arabia.
You Mr.
@Zarvan are not informed of the Yemeni Crisis.