Major Territories Controlled by France during World War 1:
1. Home Territory: France retained control over most of its home territory, with the notable exception of some border regions temporarily occupied by German forces.
2. Alsace-Lorraine: Prior to the war, Alsace-Lorraine was under German control. During World War 1, French troops liberated these regions from German occupation, and they remained under French control after the war.
3. Cameroon and Togo: France maintained control over its colonies of Cameroon and Togo in Africa.
4. Morocco and Algeria: France maintained its protectorates of Morocco and Algeria in North Africa.
5. Tunisia: Tunisia was a French protectorate since the late 1800s, and it remained under French control throughout World War 1.
6. Syria and Lebanon: Following the collapse of the Ottoman Empire, French troops occupied the regions of Syria and Lebanon in the Middle East. These areas came under the French Mandate for Syria and Lebanon after the war.
Throughout the war, France also played a significant role in territorial disputes and engagements in various theaters of the conflict, including the Dardanelles Campaign, the Gallipoli Campaign, and the Battle of the Somme.
It's important to note that the control over some of these territories was established or reinforced during the war or underwent changes as the war progressed. Additionally, peace agreements and territorial adjustments made at the end of the war affected the boundaries and control of these territories.