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  German troops besiege Mora mountain for 18 months - surrenders to Allies.
Marks End of Cameroon campaign. - 
  
  British transport to two motor boasts to Lake Tanganyika in Africa.
Strategic lake is taken from local German forces. - 
  
  Austro-Hungarian troops attack Montenegro on the 5th January. The troops are delayed at the Battle of Mojkovac.
3 weeks later Montenegro is forced to surrender. - 
  
  On the Caucasus Front, the Russians launch a surprise winter offensive against Ottoman Turkish forces.
Six weeks later, Russian troops occupy the city of Erzurum.
In April, they capture the Black Sea port of Trebizond. - 
  
  On Western front, Germans offense on French fortress-town of Verdun.
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  German's retaliation for Portugal co-operating with British.
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  On the Eastern Front, Russian launched an attack near Lake Naroch.
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  In the middle east, British forces surrender.
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  British & France secretly sign the agreement, planning after the war to divide the Middle East into British & French zones of control.
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  On Italian front, Austro-Hungarian forces launch surprise attack at Asiago.
Italian forces give defences give way & Austro-Hungarian troops are poised to break through into northern Italy. - 
  
  In North sea, German High Seas Fleet clashes with the British Grand fleet.
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  On Eastern front, Russians advance through enemy lines being successful yet costly.
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  At sea on route to Russia
650 dead among Britain's iconic representive. - 
  
  Italian troop ship sunk by German submarine.
1,900 lives lost - one of the deadliest sinking of the war - 
  
  Sherif of Mecca, leads Arabs in revolt against Turkish Ottoman rule and his forces seize control of the holy city.
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  On Western Front, British & France launch major attack.
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  Romania quickly advances into Transylvania however countered by German, Bulgarian & Austro-Hungarian.
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  On Western Front, attack at Verdun is called off by General von Falkenhayn.
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  Prevents breakthrough of Bulgarian
Allied forces at Salonika support Romania - 
  
  Italian against Austro-Hungarian positions for 7th,8th,9th battle.
Costly - 
  
  British introduce new weapon - Tank
Too few in number with prone to mechanical failure to make impact. - 
  
  Both sides suffer heavy losses
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  Allies have advanced at cost of 650,000 casualties
German losses are 450,000