They've been working on fusion since the 60's or 50's, and are no closer to achieving it than they were then. One of my highschool classmates was in the Princeton physics department. He chose Princeton because he wanted to work on the Tomahawk reactor research. I spoke to him a few years afterward, and he told me he abandoned the idea when one of the professors working on the project told him that he did not anticipate that it would ever be successful. This was during the 1970s. Run the tape 30 years ahead, and so far they've got nothing.
Tomahawk is a cruise missile. You mean Tokamak, probably. Well, this Tokamak design is close to energy break-even point by now [they are building the biggest one in Europe, IIRC]. I'd say it IS a progress - and a serious progress, too, as we learn more and more about what will have to be involved. At this rate in 50-80 years one could expect fusion energetics, unless something completely unforeseen and unknown pops up and gums the works.