The 2nd Battalion 7th Cavalry was landed further down the valley .
On 20 April the 3rd Brigade , 1st Cavalry continued to deploy , the 1st Battalion , 7th Cavalry Regiment moved southeast while the 5th Battalion , 7th Cavalry moved to block Route 548 to Laos .
The 7th Cavalry       was landed further down the valley .
On 20 April the 3rd Brigade , 1st Cavalry continued to deploy , the 1st Battalion , 7th Cavalry Regiment moved southeast while the 5th Battalion , 7th Cavalry moved to block Route 548 to Laos .