Columns of American troops move towards the front in France: they are traveling on foot, in horse drawn carts, and by train. The arrival of American troops helped turn the tide against Germany and quickly brought the war to an end.
A group of well dressed people line up for food from the War Bread Wagon, organized by the New York City Food Aid Committee. If I understand correctly, the truck was not handing out food aid but rather fund raising to provide assistance to war refugees in Europe.
A French artillery unit struggles to emplace their gun in the soft mud of the Western front. Note the very deep ruts around the gun crew where the cannons have sunk into the mud and been dragged.
Ottoman troops take up positions against the advancing British and their Arab allies in Gaza, 1917. Despite insurmountable short comings in logistics, supply and weaponry, the Ottoman Empire put up a good fight against the allied powers, even scoring some impressive victories.
Pictured below is a closeup of the machine gun crew. Note the heavy belt fed machine gun, which would have been extremely difficult to transport especially in the heat and terrain of the Middle East.
The Ottomans were able to hold the front in Sinai and Palestine until near the end of the war, when their resistance collapsed and the British entered Jerusalem.
This photograph (taken circa 1914) shows an Ottoman gun crew loading a cannon, somewhere on the Caucasus front with Russia. The artillery piece is fairly small, probably a mountain gun, designed for transport over rough terrain.
The Ottoman Empire entered the war on the side of Germany and Austria and soon learned that it was a colossally stupid decision. Despite lacking lacking heavy industry and being without a modern transportation network, and ruling over a number of rebellious and discontented ethnic groups, the dying Ottoman Empire voluntarily went to war with all of the Super Powers of the day and was fighting on multiple fronts, a task which would have sapped the strength of even a major power.
Ottoman troops were fighting in Egypt (later pushed back into Palestine), in Gallipoli, against Romania and Greece, against Britain in Iraq, and against the Russian Empire in the Caucasus. Despite the heavy odds against it, the Ottomans actually took the offensive in many areas, including the Caucasus region. However even the otherwise hapless Imperial Russian Army was able to push back the Ottomans and to hold them at bay even until the Russian collapse following the Communist Revolution.