Town's Evangelical Union move on war disaster (7)

'town's' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'evangelical union move on war disaster' is the wordplay.
'evangelical' becomes 'e' (this might be a standard abbreviation I've not previously seen).
'union' becomes 'U' (common abbreviation as in 'Trades Union Congress').
'move' becomes 'go' (to go is to move).
'on' indicates putting letters inside.
'disaster' indicates anagramming the letters.
'war' is an anagram of 'wra'.
'go' inserted within 'wra' is 'gowra'.
'e'+'u'+'gowra'='EUGOWRA'

Can you help me to learn more?