The operation commenced with a helicopter assault into the valley at 07:00 on 28 April. Contact was minimal until the night of 2 May when a VC unit attacked Company C's night defensive position and was forced back by artillery and AC-47 Spooky gunfire.[1]
On 5 May as the Battalion headquarters was being withdrawn by helicopters it was attacked by VC mortar and small arms fire, the assault was repulsed without loss.[1]: 158–9
On 9 May Beaver Cage was joined with Operation Union. On 10 May Companies B and C engaged a large VC unit killing 86 VC.[1]: 159
Aftermath
The operation concluded on 12 May, Marine losses were 55 dead and 151 wounded, while VC losses were 181 killed and 66 captured.[1]: 159