The jungle terrain and bad weather made it difficult for the American forces fighting in Vietnam. This is because it allowed the Vietcong to successfully use guerrilla warfare strategies and to lay traps. Later, tunnels were found under the jungles which helped them avoid bombs
What they have in common is that both actions require consent of the senate. The senate has to vote with a majority for those things to come into effect.
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It is not true. i believe this is the answer
When analyzing a source, historian has to remain unbiased and free from personal feelings and opinions. They know that there are different source of an event and they may reveal different facts which could cross-check his argument. The objective historiography is possible only when the historian is unbiased and when different sources like archaeological, literary and other sources are cross-checked and interpreted independently.
