The Iraqi Insurgency refers to the armed resistance against the Iraqi government and foreign forces, particularly following the 2003 invasion by the United States and its allies. Various groups, including former Ba'ath Party members and Islamist factions, emerged to oppose the new political order, leading to widespread violence and instability. The insurgency has involved guerrilla warfare, bombings, and attacks on military and civilian targets. Over time, it has evolved, with some factions aligning with extremist groups like ISIS, further complicating the security situation in Iraq. Efforts to combat the insurgency have included military operations and political reconciliation initiatives.