The triple entente consisted of
germany, austria-hungary, and russia
germany, austria-hungary, and italy
france, great britain, and italy
france, great britain, and russia

   France, Great Britain, and Russia

Explanation:  The Triple Entente, based on the French word, means understanding, an agreement that relates to the alliance of the Russian Empire, France and the United Kingdom with Ireland, against the growing threat from Germany and Austria Hungary and their imperialist expansionist intentions. This alliance was formally established by the signing of the 1907 agreement between Russia and Britain, and all members of the Entente entered as WWI Allies against the Central Powers.

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.