The officer, contacted by phone, declined to give his name.
The poem by Rudyard Kipling is written through the eyes of a retired British serviceman in Burma, also known as Myanmar, which Britain colonised for more than a century.
The Guardian, reporting on the footage due to be broadcast by Channel 4, said the British ambassador Andrew Patrick stopped Mr Johnson mid-flow, and before he recited the line “Bloomin’ idol made o’ mud/ Wot they called the Great Gawd Budd” – a reference to Buddha.
One woman, Ayamar Bagon, told AFP she has been forced to live on handouts after her husband left her when she told him she was gang-raped by soldiers.
"I was raped close to my due date, in my ninth month of pregnancy.
"I continue to receive reports of violations allegedly committed by security forces during operations." She accused the government of disrupting her scheduling to make it difficult to plan visits, as well as barring some visits completely.