Hitler caused the European component of World War II by invading Poland, in spite of British and French indications that they would guarantee Poland’s borders and respond militarily to German belligerence. When the Germany army invaded Poland on September 1, 1939, that triggered the Western allies’ guarantee.
D. Helispot. <span>Helispots are temporarily located as an incident grows, and often have markings to determine their use for emergency incidents. </span>