Sentence:  I am recommending additional acquisitions of the improved version of the B-52 ( the B-52 H with the <WSD>new</WSD> turbofan engine ) and procurement of the B-58 supersonic medium bomber , together with the supporting refueling tankers in each case . 
Meaning of the word marked with <WSD> tags:  not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered