Story highlights Jordan reinforcing borders over concerns ISIS fighters from Iraq, Syria may move towards the country

Nearly half of all armed forces now deployed to border regions, officials say

(CNN) A little over an hour's drive from the Jordanian capital Amman, lies one of the most breathtaking and seemingly tranquil scenes in the country. But the lush mountainous terrain around al-Wahda dam near the Syrian border, is far from peaceful.

Jordanian border guard are on a constant state of alert here. Their weapons pointed towards Syria's green hills on the other side of Yarmouk river.

Some of the villages across the river live under the control of an ISIS affiliate, the Khaled bin al-Waleed Brigade. The group has mostly been battling Free Syrian Army rebels but it has also tried to target Jordan, according to officials.

And as the US-led coalition forces step up their campaign on ISIS in Iraq's Mosul and Syria's Raqqa, Jordanian officials are warning that pressure on jihadists in these two countries may push them closer to Jordan's doorstep.

Changing targets?

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