Egyptian President Abdel Fattah el-Sisi stated that Egyptian military support would strictly defend Saudi Arabian territory, sovereignty, and Islamic holy sites against external attacks

From the articleEgyptian parliament authorizes President El-Sisi to take action to defend Saudi ArabiaAlso in Egypt approves military support for Saudi Arabia after Houthi attacks escalate, Egypt OKs Military Aid to Saudis in Fight With Houthis, Egypt parliament authorises military support to Saudi Arabia