In his first term he survived an assassination attempt, took a hard line against labor unions, and ordered an invasion of Grenada.
His successful fight against Communism.
one of the most biggest challengings was fighting for what they wanted.
his impeachment
Carlos Romulo's "The Filipino Challenge" speech was delivered on June 12, 1943, at the Philippine Normal School in Manila, Philippines during the Japanese occupation of the country.
Improved Greatly!! :)
the falling of the Berlin Wall.
During the fall/winter of 2010, Demi Lovato checked herself into a treatment center due to her "emotional and physical issues". During her stay, she was diagnosed with bipolar disorder. After months of struggle, she's recovered (as of Spring 2011) and is back to work, mostly on her third studio album. Arguably, that may be her biggest challenge.
Ronald Regan increased spending on the military
Winning the war in the Pacific during WWII
one of his biggest problems was how and what to do about slavery. when the civil war came to hand, he had no idea what to do, yet somehow managed it
The biggest event in Polk's administration was the Mexican War and its aftermath.
Nicaragua
During the climax, the tension and conflict reach their peak as the main characters face their biggest challenge or obstacle. This is typically the most intense and pivotal moment in the story where the outcome of the conflict is decided.