can u pls help me im a japanese..plss

plss help me to make a congratulation letter with love.. i dont know wat to say.. my best friend is in iraq ryt now and his comming back home.. i want to send him a congratulation letter with love for his success.. i want something special. i cant make a letter coz im not good in englis.. im a japanese and im still learning.. can u plss give me some lines.. plsss people......