The word "远征" is formed by combining the character "远", meaning "far" or "distant", which incorporates the radical "辶" to imply movement and the phonetic component "袁" to suggest pronunciation, with the character "征", meaning "to journey" or "to campaign", which uses the radical "彳" to denote walking and the phonetic "正" for sound. In this compound, "远" descriptively modifies "征" to convey a journey over a great distance, resulting in the meaning "long journey" or "expedition".