Some tense moments at a local anti-war protest led by activist, Cindy Sheehan.

Sheehan was at Travis Air Force Base as part of a peace caravan protesting President Obama's plan to send more troops to Afghanistan.

They came in peace, but the protest soon involved pushing, yelling, and shoving.

Soldiers at Travis Air Force Base had to break up a heated confrontation between protestors and retired military Sgt. Phil Ward.

Ward says, "I'm not here to support Obama. I'm here to support our troops. Every time they do a demonstration, they ruin the troops."

The anti-war protesters say they're against President Obama's plan to send roughly 30-thousand troops to Afghanistan.

Right now there are 68-thousand U.S. soldiers fighting the war.

Sheehan says, "That's a huge escalation."

They're also fighting against the use of drones. Drones are unmanned aircraft launched from boats and bases around the world. They are controlled by soldiers sitting in front of computers.

The war hits home for Sheehan because her son, Casey, was killed in 2004 while serving in Iraq. Sheehan says there's always somebody who doesn't like her views, but she won't be silenced.

"I'm never going to stop," she says.

This peace caravan is expected to end on Monday at Creech Air Force Base in Indian Springs, Nevada.

That's just in time for President Obama's speech on Tuesday night.