If you list the options then I can help you but the answer is probably when Germany invaded Poland.
Front line trench: Soldiers stationed in the front-line trench were constantly on alert for enemy patrols and attacks. The front-line trench was also the start point of any "over the top" attack on an enemy.
Support trench: <span>The support trench help back-up forces to support the from-line trench in the emergency of an enemy attack or in the need of more soldiers for a friendly attack. They were also used to take supplies such as ammunition and food to soldiers on the front-line.
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Reserve trench: <span>Reserve trenches were even farther back than the support trenches. This was used to give soldiers a break from being on the front line. The reserve trench were still close enough in case an enemy attack got throughout the front trench and into the support trench.
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Communication trench: <span>The communication trenches ran the opposite direction as all the other trenches. These trenches aloud them to move soldiers and supplies from trench to trench without being exposed to the enemy. </span>
C. The people rebelled against high taxes
the ten northern tribes split away from King David's line because of a prophecy that said that Jeroboam would get the ten Northern tribes (because GOD promised David he would always have a descendant on the throne)
So Rehoboam got Judah and Benjamin as his kingdom.
The people split away because they asked Rehoboam to lower the taxes that were imposed on them my Solomon his father. His reply was "my little finger was thicker than my fathers waist. My father whipped you with whips, i will scourge you with brambles."
hope this helps
A household consisting of a mother and father and their children