• Iranian lawmaker says Mecca Defence Pact shows regional frustration with US.
• Pact between Saudi Arabia, Turkey, and Pakistan may signal loss of confidence in US security.
• Tehran is closely watching the new defence arrangement.
• Iran supports development of indigenous regional security.

This development may indicate a shift in regional dynamics, with Iran and other countries seeking alternative security arrangements. The Mecca Defence Pact could suggest a growing perception that the US is no longer a reliable security partner, which may have implications for regional stability and US influence.