US Secretary of State John Kerry said there was "no justification" for the military coup in Thailand.
"This act will have negative implications for the US-Thai relationship, especially for our relationship with the Thai military," Kerry said in a statement.
More top news
Kouider collapsed in tears as the jury foreman returned the verdicts, while Medouni bowed his head.
The passenger jet was heading from Amsterdam to Kuala Lumpur when it was blown out of the sky over eastern Ukraine on July 17 2014.
The amendment on keeping the UK in some kind of Customs Union will be a key test of Theresa May’s fragile Parliamentary authority.