Senator Rand Paul has launched a fresh effort to end the war in Afghanistan, bring all US troops home, and pay every veteran of the conflict a 'victory bonus'.

Paul will introduce new legislation this week "to end a war that should have ended long ago."

The Senator announced the AFGHAN Service Act to end the 18 year conflict on his Facebook page:

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"I supported going to war in Afghanistan in 2001, attacking those who harbored the 9/11 terrorists or helped to organize the attack … and going after al-Qaeda," Paul said. "But we are many, many years past that mission. We have turned to nation-building at the cost of more than $50 billion spent a year in Afghanistan."

"It's important when to know to declare victory and leave a war," he added. "I think that time is long past, but I think we can all agree that time has come."