 During the incursion itself , U.S. and ARVN ground units were supported by 9 @,@ 878 aerial sorties ( 6 @,@ 012 U.S. / 2 @,@ 966 Vietnamese Air Force ) , an average of 210 per day . During operations in the Fishhook , for example , the USAF flew 3 @,@ 047 sorties and the South Vietnamese Air Force 332 . These tactical airstrikes were supplemented by 653 B @-@ 52 missions in the border regions ( 71 supporting Binh Tay operations , 559 for Toan Thang operations , and 23 for Cuu Long ) . 30 May saw the inauguration of Operation Freedom Deal ( named as of 6 June ) , a continuous U.S. aerial interdiction campaign conducted in Cambodia . These missions were limited to a depth of 48 @-@ kilometers between the South Vietnamese border and the Mekong River . 
 During the incursion itself , U.S. and ARVN ground units <a href='uninflect' title='1'><mark>were</mark></a> supported by 9 @,@ 878 aerial sorties ( 6 @,@ 012 U.S. / 2 @,@ 966 Vietnamese Air Force ) , an average of 210 per day . During operations in the Fishhook , for example , the USAF flew 3 @,@ 047 sorties and the South Vietnamese Air Force 332 . These tactical airstrikes <a href='uninflect' title='2'><mark>were</mark></a> supplemented by 653 B @-@ 52 missions in the border regions ( 71 supporting Binh Tay operations , 559 for Toan Thang operations , and 23 for Cuu Long ) . 30 May saw the inauguration of Operation Freedom Deal ( named as of 6 June ) , a continuous U.S. aerial interdiction campaign conducted in Cambodia . These missions <a href='uninflect' title='3'><mark>were</mark></a> limited to a depth of 48 @-@ kilometers between the South Vietnamese border and the Mekong River . 
During da incursion itself , U.S. and ARVN ground units was supported by 9 @,@ 878 aerial sorties ( 6 @,@ 012 U.S. / 2 @,@ 966 Vietnamese Air Force ) , an average of 210 per day . During operations in the Fishhook , fir example , the USAF flew 3 @,@ 047 sorties and the South Vietnamese Air Force 332 . These tactical airstrikes was supplemented by 653 B @-@ 52 missions in tdaborder regions ( 71 supporting Binh Tay operations , 559 for Toan Thang operations , and 23 for Cuu Long ) . 30 May saw the inauguration of Operation Freedom Deal ( named as of 6 June ) , a continuous U.S. aerial interdiction campaign conducted in Cambodia . These missions was limited to a depth of 48 @-@ kilometers between the South Vietnamese border and the Mekong River .