IN: The Blackfoot Confederacy, Niitsitapi or Siksikaitsitapi (nitmowmeko, meaning "the people" or "Blackfoot-speaking real people") is a historic collective name for the four bands that make up the Blackfoot or Blackfeet people: three First Nation band governments in the provinces of Saskatchewan, Alberta, and British Columbia, and one federally recognized Native American tribe in Montana, United States. The Siksika ("Blackfoot"), the Kainai or Kainah ("Blood"), and the Northern Piegan or Peigan or Piikani ("Apa'tosee" or "Poor Robes") reside in Canada; the Southern Piegan/Piegan Blackfeet ("Amskapi Piikani" or Pikuni) are located in the United States, where they are also known as the Blackfeet Nation. In modern use, the term is sometimes used only for the three First Nations in Canada. Historically, the member peoples of the Confederacy were nomadic bison hunters and trout fishermen, who ranged across large areas of the northern Great Plains of western North America, specifically the semi-arid shortgrass prairie ecological region.

The Niitsitapi main source of food on the plains was the American bison (buffalo), the largest mammal in North America, standing about 6 1/2 feet (2.0 m) tall and weighing up to 2,000 pounds (910 kg). Before the introduction of horses, the Niitsitapi needed other ways to get in range. The buffalo jump was one of the most common ways. The hunters would round up the buffalo into V-shaped pens, and drive them over a cliff (they hunted pronghorn antelopes in the same way). Afterwords the hunters would go to the bottom and take as much meat as they could carry back to camp. They also used camouflage for hunting. The hunters would take buffalo skins from previous hunting trips and drape them over their bodies to blend in and mask their scent. By subtle moves, the hunters could get close to the herd. When close enough, the hunters would attack with arrows or spears to kill wounded animals.  The people used virtually all parts of the body and skin. The women prepared the meat for food: by boiling, roasting or drying for jerky. This processed it to last a long time without spoiling, and they depended on bison meat to get through the winters. The winters were long, harsh, and cold due to the lack of trees in the Plains, so people stockpiled meat in summer. As a ritual, hunters often ate the bison heart minutes after the kill. The women tanned and prepared the skins to cover the tepees. These were made of log poles, with the skins draped over it. The tepee remained warm in the winter and cool in the summer, and was a great shield against the wind.  The women also made clothing from the skins, such as robes and moccasins, and made soap from the fat. Both men and women made utensils, sewing needles and tools from the bones, using tendon for fastening and binding. The stomach and bladder were cleaned and prepared for use for storing liquids. Dried bison dung was fuel for the fires. The Niitsitapi considered the animal sacred and integral to their lives.
QUESTION: how else were they important?
IN: Menachem Begin ( listen ; Hebrew: m@nakhem be'giyn Menahem Begin, Polish: Mieczyslaw Biegun; Russian: Menakhem Vol'fovich Begin Menakhem Volfovich Begin; 16 August 1913 - 9 March 1992) was an Israeli politician, founder of Likud and the sixth Prime Minister of Israel.

In 1978 Begin, aided by Foreign Minister Moshe Dayan and Defense Minister Ezer Weizman, came to Washington and Camp David to negotiate the Camp David Accords, leading to the 1979 Egypt-Israel Peace Treaty with Egyptian President, Anwar Sadat. Before going to Washington to meet President Carter, Begin visited Rabbi Menachem M. Schneerson for his advice. Under the terms of the treaty, brokered by US President, Jimmy Carter, Israel was to hand over the Sinai Peninsula in its entirety to Egypt. The peace treaty with Egypt was a watershed moment in Middle Eastern history, as it was the first time an Arab state recognized Israel's legitimacy whereas Israel effectively accepted the land for peace principle as blueprint for resolving the Arab-Israeli conflict. Given Egypt's prominent position within the Arab World, especially as Israel's biggest and most powerful enemy, the treaty had far reaching strategic and geopolitical implications.  Almost overnight, Begin's public image of an irresponsible nationalist radical was transformed into that of a statesman of historic proportions. This image was reinforced by international recognition which culminated with him being awarded, together with Sadat, the Nobel Peace Prize in 1978.  Yet while establishing Begin as a leader with broad public appeal, the peace treaty with Egypt was met with fierce criticism within his own Likud party. His devout followers found it difficult to reconcile Begin's history as a keen promoter of the Greater Israel agenda with his willingness to relinquish occupied territory. Agreeing to the removal of Israeli settlements from the Sinai was perceived by many as a clear departure from Likud's Revisionist ideology. Several prominent Likud members, most notably Yitzhak Shamir, objected to the treaty and abstained when it was ratified with an overwhelming majority in the Knesset, achieved only thanks to support from the opposition. A small group of hardliners within Likud, associated with Gush Emunim Jewish settlement movement, eventually decided to split and form the Tehiya party in 1979. They led the Movement for Stopping the Withdrawal from Sinai, violently clashing with IDF soldiers during the forceful eviction of Yamit settlement in April 1982. Despite the traumatic scenes from Yamit, political support for the treaty did not diminish and the Sinai was handed over to Egypt in 1982.  Begin was less resolute in implementing the section of the Camp David Accord calling for Palestinian self-rule in the West Bank and Gaza Strip. He appointed Agriculture Minister Ariel Sharon to implement a large scale expansion of Jewish settlements in the Israeli-occupied territories, a policy intended to make future territorial concessions in these areas effectively impossible. Begin refocused Israeli settlement strategy from populating peripheral areas in accordance with the Allon Plan, to building Jewish settlements in areas of Biblical and historic significance. When the settlement of Elon Moreh was established on the outskirts of Nablus in 1979, following years of campaigning by Gush Emunim, Begin declared that there are "many more Elon Morehs to come." During his term dozens of new settlements were built, and Jewish population in the West Bank and Gaza more than quadrupled.
QUESTION:
What did Egypt have to give up?