http://www.britishpathe.com/record.php?id=24790

The British Expeditionary Force

שנאלץ לשוב על עקבותיו במסגרת "נס דנקירק" מ-1940

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Note added at 1 hr (2011-12-26 19:10:03 GMT)
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http://www.wordnik.com/words/expeditionary
ספינות משלוח מתאים כאן לדעתי

הסבר על SSDS

SSDS
Ship's Self Defense System (SSDS) is an integrated weapons system used aboard large U.S. Navy ships, such as Nimitz class supercarriers and various amphibious assault ships, such as LHDs and LSDs. SSDS is an integrated combat direction system (CDS). SSDS follows an open architecture approach and uses existing shipboard radars and weapons systems, integrated under a COTS framework, to provide a cohesive CDS. The first SSDS designs were backfit onto existing U.S. Navy ships.



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Note added at 1 hr (2011-12-26 19:13:50 GMT)
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קטע ממאמר בעיתון הגארדיין הבריטי
http://www.guardian.co.uk/commentisfree/2010/aug/23/michael-...

They do not even suggest that the navy's two new aircraft carriers should be scrapped, trimmed or mothballed. It is too late for that. At 65,000 tonnes apiece, they are due to be completed at Rosyth (Brown did grasp constituency employment issues) for at least £4bn, by 2016-ish. The authors do insist that 21st-century "expeditionary" warfare will need versatile surface ships – and that defence is not a discretionary spending item even for impoverished coalitions. Over to you, Liam Fox.

Whilst my military dictionary gives חיל משלוח for "expeditionary force", therefore logic might dictate something like what you suggested above.

I agree that it lacks something intangible.....

If Doron's link is accurate (my own research suggests it is) that an expeditionary ship is an amphibious, multipurpose, multifunction ship then perhaps something along the lines of
ספינה רב-תכליתית
might be possible.
Or a variation on this.