What was the purpose of NATO and the Warsaw Pact?

The phrases below show the purposes of either the Warsaw Pact or NATO.

if members were attacked, the
United States would respond
with a full-fledged attack

was used in the invasion
of Czechoslovakia

served as a mechanism for the
Soviets to maintain a military
presence in its satellites

was used as a deterrent
against communist aggression

placed Western Europe under
a “nuclear umbrella”

retaliation for the remilitarization
of West Germany

(The Warsaw Pact) (NATO)

was used as a deterrent against communist aggression
placed Western Europe under a “nuclear umbrella”
if members were attacked, the United States would respond with a full-fledged attack

What was the Warsaw pact

This was a pact that was done to unify the military of the members of the soviet union. The pact was done due to the integration of Western Germany as a member of the NATO in the year 1955.

served as a mechanism for the Soviets to maintain a military presence in its satellites.
retaliation for the remilitarization of West Germany

The pact was an alliance that happened with the Soviets and some East European countries.