We can all breathe easier now knowing that the Saudis are on top of things.
First Saudi National Guards reach Yemen border zone
AFP , Monday 27 Apr 2015

They will join members of the border guard and the army who have reinforced the frontier since March 26 when a Saudi-led coalition began air strikes against Shia Houthi rebels and their allies in Yemen.
The vanguard of National Guard troops “have arrived in Najran region to participate in the defence of the southern borders… so as to confront any possible threats,” the official Saudi Press Agency said.
King Salman announced on April 21 the National Guard’s mobilisation, just hours before the coalition declared an end to its air campaign dubbed “Operation Decisive Storm”.
Despite that declaration, the coalition has continued daily air strikes in Yemen, where Iran-backed Houthi rebels are allied with army units loyal to former president Ali Abdullah Saleh.
They are fighting forces loyal to President Abedrabbo Mansour Hadi, who has fled to Riyadh with members of his government.