It is every fundamentalist Muslim’s duty to wage unending war until Dar al-Islam (the land of Islam) finally conquers Dar al-Harb (the land of war, where we live), producing a worldwide Caliphate. We can deny it all we want, but that is their duty.
In the course of their work however, it is permissible to enter into a tactical Hudna. A Hudna is a truce of up to ten years where the tactical position of Dar al-Islam is strengthened. Al-Sadr has entered into a Hudna.
Section 8:66 of Sharia Law authorizes the concept of Hudna:
Now hath Allah lightened your burden, for He knoweth that there is weakness in you. So if there be of you a steadfast hundred they shall overcome two hundred, and if there be of you a thousand (steadfast) they shall overcome two thousand by permission of Allah. Allah is with the steadfast.
In contrast to Section 8:66; Section 8:65 directs believers to fight when they regain a position of strength:
O Prophet! Exhort the believers to fight. If there be of you twenty steadfast they shall overcome two hundred, and if there be of you a hundred (steadfast) they shall overcome a thousand of those who disbelieve, because they (the disbelievers) are a folk without intelligence.
McCain can keep the troops in Iraq and Afghanistan for two hundred more years. But as soon as we leave, the Hudna will end and Iraq will degenerate into civil war, yielding either an Islamic theocracy or a military dictatorship.
Our national interest is best served by disengaging from Dar al-Islam and adopting a defensive stance against the demographic, money, and legal weapons of the modern Jihad.