Can someone remind me of the difference between the GWOT Service and the GWOT Expeditionary Medals?

GWOT-E: The GWOTEM was established by EO 13289, 12 March 2003. It is authorized for award to Servicemembers of the Armed Forces of the United States who are deployed abroad for service in the Global War on Terrorism operations on or after 11 September 2001 to a date to be determined. Operations approved the GWOTEM are provided in paragraph 2–18d of AR 600-8-22

GWOT-S: The GWOTSM was established by EO 13289, 12 March 2003. It is authorized for award to Servicemembers of the Armed Forces of the United States who have participated in or served in support of a Global War on Terrorism operations outside of the designated area of eligibility defined in paragraph 2–19d on or after 11 September 2001 to a future date to be determined. Operations approved for the GWOTSM are provided in paragraph 2–19c of AR 600-8-22

The GWOT EM or Expetitionary Medal was awarded to those who deployed to a combat zone for more than 30days. It was replaced with the Iraq Campaign Medal. Those-such as myself-who we’re awarded the GWOT EM were given the option of keeping the GWOT EM or “trading” for the Iraq Campaign Medal. I kept the GWOT EM as one of the first units deployed to Iraq in 2003.

Leave it to these NCOs to still be squaring me away even after I'm out of the Army, lol