Question: when was the military code of conduct established
[{'answer': '17 August 1955', 'provenance': [{'wikipedia_id': '2775954', 'title': 'Code of the United States Fighting Force', 'start_paragraph_id': 8, 'start_character': 234, 'end_paragraph_id': 8, 'end_character': 248, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '2775954', 'title': 'Code of the United States Fighting Force', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 609, 'bleu_score': 0.863786789554363, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3734993884168428809}, 'section': 'Section::::History.\n'}]}]