 The main problems were the pressure of time and the desire of the U.S. president for secrecy . The Cambodian monsoon , whose heavy rains would hamper operations , was only two months away . By the order of the president , the State Department did not notify the Cambodian desk at the US Embassy , Saigon , the Phnom Penh embassy , or Lon Nol of the planning . Operational security was as tight as General Abrams could make it . There was to be no prior U.S. logistical build @-@ up in the border regions which might serve as a signal to the communists . U.S. brigade commanders were informed only a week in advance of the offensive , while battalion commanders got only two or three days ' notice . 
 The main problems <a href='uninflect' title='1'><mark>were</mark></a> the pressure of time and the desire of the U.S. president for secrecy . The Cambodian monsoon , whose heavy rains would hamper operations , was only two months away . By <a href='None' title='2'><mark>the</mark></a><a href='negative_concord' title='3'><mark>order</mark></a> of the president , the State Department did not notify the Cambodian desk at the US Embassy , Saigon , the Phnom Penh embassy , or Lon Nol of the planning . Operational security was as tight as General Abrams could make it . <a href='dey_it' title='4'><mark>There</mark></a> was to be no prior U.S. logistical build @-@ up in the border regions which might serve as a signal to the communists . U.S. brigade commanders <a href='uninflect' title='5'><mark>were</mark></a> informed only a week in advance of the offensive , while battalion commanders got only two or three days <a href='null_genetive' title='6'><mark>'</mark></a>notice . 
The main problems was the pressure of time and da desire of the U.S. president for secrecy . The Cambodian monsoon , whose heavy rains would hamper operations , was only two months away . By no order of the president , tdaState Department did not notify the Cambodian desk at thdaS Embassy , Saigon , the Phnom Penh embassy , or Lon Nol of the planning . Operational security was as tight as General Abrams could make it . It was to b no prior U.S. logistical build @-@ up in the border regions which mite serve as a signal to thedammunists . U.S. brigade commanders was informed only a week in advance of the offensive , while battalion commanders got only two or three dayz  notice .