The IRGC said the missile strikes were a warning to deter future Islamic State attacks.
"The missile attacks were only a small part of Iran's punitive power against terrorists and enemies", Guards spokesman General Ramezan Sharif said Monday.
"Obviously and clearly, some reactionary countries of the region, especially Saudi Arabia, have announced that they are trying to bring insecurity into Iran", he said.
The report noted that the dilemma is complicated by conflicting Russian Federation and Syrian goals of keeping Syrian President Bashar Assad's government in power as opposed to the US-led coalition and Syrian Democratic Force (SDF) allies' efforts to oust Assad.
In March, an official was quoted by Iran's IRNA news agency as saying that about 2,100 combatants sent by Iran have been killed in Syria and Iraq.
Most of the missiles missed their mark, and only one landed on its intended target despite claims by Iran's military that it struck an Islamic State command center and suicide vehicle bomb operation.
On Tuesday, commander of Iran's Islamic Revolution Guard Corps (IRGC) said that Saudi Arabia has been behind June 7 terrorist attacks in Tehran.
The operation comes just days after the U.S. Senate passed the Countering Iran's Destabilizing Activities Act by an overwhelming margin, a new sanctions legislation which targets Iran's ballistic missile program and applies sanctions against the IRGC.
He pointed out that it was the first time that Iranian missile power showed itself to the world on the ground, and stressed that the enemies of the Islamic Republic should know that "in the event of an invasion or violation of global law, they will be confronted with an overwhelming response".