US Department of Defense (Pentagon) officials admitted on Friday that the success in destroying the Yemeni armed forces' massive arsenal of missiles, drones, and bombers was not significant.

The American newspaper, The New York Times, quoted three congressional and allied officials as saying: "The Yemeni armed forces have reinforced many of their hideouts and other target sites, frustrating the Americans' ability to disrupt missile attacks."

The New York Times noted that the US Department of Defense has used $200 million worth of munitions in just three weeks of airstrikes on Yemeni forces, in addition to the operational and human costs of deploying two aircraft carriers, additional bombers, fighter jets, and Patriot and THAAD air defense systems. The total cost could exceed $1 billion by next week.