Wage battles with arms, as tests of military strategies? (3,5)

I believe the answer is:

war games

'tests of military strategies?' is the definition.
(war games are military strategic exercises)

'wage battles with arms' is the wordplay.
'battles with' is an anagram indicator (I've seen 'battle' mean this (the letters disrupted as if in battle)).
'wage' with its letters anagrammed with 'arms' makes 'WAR-GAMES'.

'as' is the link.

(Another definition for war games that I've seen is " military exercises".)

I've seen this clue in The Guardian.

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