What happened on this land around c. 2000–2010 CE?

2000s: post-2003 Iraq war reshapes neighborhood; Iran’s regional role grows; international dispute over Iran's nuclear program intensifies.
Rulers
Islamic Republic of Iran (Supreme Leader + elected presidents)
1979–present
Continued rule by the Islamic Republic with evolving domestic politics and international tensions over nuclear program.
Battles
Proxy and regional conflicts (indirect engagements)
2000s
Iran involved in proxy engagements across the region (Iraq after 2003, Lebanon, Syria) though not formal interstate war on Iranian soil.