[1] The use of gas, as already pointed out, had been forced on the British
by its adoption by the Germans. Ultimately the methods invented by British
chemists and physicists outgassed the Germans.
[2] Portugal was drawn into the war on the side of the Allies on 19th
March, 1916, when Germany declared war on her, ostensibly because she had
requisitioned German merchant ships lying in her harbours, but in reality
because an invasion of Mozambique was then becoming necessary to Germany's
hard-pressed troops in East Africa.
[3] Japan afterwards assisted the Allies with war supplies--particularly
with heavy guns to Russia before the Bolshevik betrayal--subsequently
helping to stem the tide of Bolshevism in the Far East, besides
contributing with her ships to the defeat of the German submarine campaign
in the Mediterranean.
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