Definition of 交際国 (こうさいこく)
こうさいこく
                        交際国
こうさいこく
kousaikoku
noun
•
        
friendly powers, treaty powers
Related Kanji
| 交 | mingle, mixing, association, coming & going | 
| 際 | occasion, side, edge, verge, dangerous, adventurous, indecent, time, when | 
| 国 | country |