This crossword No. 25655 clues and answers were published on Wed 06 Jun 2012 and the puzzle can be visited by following The Guardian Cryptic Crossword No. 25655 link.
All Across Clues and Answers:
5-across – Caught military leader, in a way, making treaty : ACCORD
6-across – Everyone loaded into vessel in preparation for war : CALLUP
9-across – At the front, protecting one, to no avail : INVAIN
10-across – Old general writing 13, for example : ANTONYMS
11-across – For the French, I name area where Napoleon was dominant : JENA
12-across – Cavalier leader not retreating where Civil War started : CHARLESTON
13-across – Literary classic we can read, a novel about power : WARANDPEACE
18-across – Unending harshness, crossing line unknown in battle : AUSTERLITZ
21-across – Unpredictable sort of cannon shortened WW1 offensive : LOOS
22-across – Observe tree, say, in Utah or Omaha, for example : SEABEACH
23-across – Older people losing heart in parts of Air Force : GROUPS
24-across – They stop fighting opponents at bridge after short retreat : TRUCES
25-across – Ben, say, disoriented in battle : NASEBY
All Down Clues and Answers:
1-down – Architect of war cameraman shot with no end of distaste : MCNAMARA
2-down – Anger cut short in pursuit of peace : IRENIC
3-down – Historic fortress rebuilt as billet : BASTILLE
4-down – Fighters, for example, seeing point in strategic efforts : PLANES
5-down – Battle for bridges with a navy on border : ARNHEM
7-down – Artillery piece Brits put together : POMPOM
8-down – Like the Blitz at its peak, exemplifying 10 : DAYANDNIGHT
14-down – Broadcast with some singers heard in military locations : AIRBASES
15-down – Selective slaughter terribly done, a Scottish tragedy : CULLODEN
16-down – Rugby forward, one on losing side at 25 : RUPERT
17-down – Roman general in naval base : POMPEY
19-down – To British and their country, place under siege in WW2 : TOBRUK
20-down – Evasive manoeuvre from Arizona soldier in Green Zone, initially going North : ZIGZAG
This crossword has in total 26 where 13 are across and 13 are down.