I'm still reading and enjoying the story, too. Comments:
It seems a bit late in the war for the first meeting of the Joint Chiefs and the War Cabinet.
No doubt Icaran communication technology supports virtual meetings, so perhaps this is just the first face-to-face conference.
With regard to warship terminology, note that even the lowly escort (in stock SE IV) at 150 kT is larger than any terrestrial warship and can wipe out an undefended planetary population single-handed. The natural tendency would be to call the first such spacecraft "space battleships" or "dreadnoughts", but then what would you call subsequent classes that are several times bigger and more powerful? This problem is illustrated by the "Majestic" class of "battleships" (1895, 16,000 tons, 4x12" guns) which was surpassed only a decade later by the "Invincible" "battlecruiser" class (1908, 17,500 tons, 8x12" guns).
It might be better to drop wet navy terminology entirely and go with something more generic, like "Type 300 hull", or maybe "Intimidator class warship".
This approach also avoids terminology problems when SE IV's generic hulls are used for "non-standard" purposes, e.g. a battlecruiser minesweeper ("battlesweeper"?), cruiser-class colony ship ("colonuiser"?), or frigate transport ("frigport"?).
