One month in advance, I wrote a 7-page letter to Bethel branch in Portugal (copies went to the CO and body of elders in the congregation) presenting solid bible and ethical arguments as to why attending the National Defense Day should be considered a matter of personal conscience decision for a christian, and making an anticipated declaration that by attending it my son wasn't in any way excising himself from the Jehovah's Witnesses.
... crickets ...
No reply at all. Only two elders coming to our house wanting to inform our son that he had been considered disassociated and offering "comfort from the scriptures". Hypocrites.
Some day I'll translate that letter into english and publish it here.