P: Col. Edwin Sumner conducted a campaign against the Navajo in 1851. He delegated Maj. Electus Backus to build Fort Defiance in the middle of Diné bikéyah . Col Sumner entered Canyon de Chelly but Navajo harassment attacks caused him to withdraw. In 1855 a treaty was signed at Laguna Negra by Manuelito and Zarcillos Largos for the Navajo and Henry L. Dodge , Governor Merriweather, and General John Garland. Two years later a severe drought hit the Navajo and decimated their livestock and agricultural resources, causing a famine in the winter of 1857-1858. A time of social disruption ensued. Surrounding tribes gradually increased their attacks on the weakened Navajo. The Navajo demanded in 1858 that Fort Defiance stop grazing their livestock on prime Navajo land. Soldiers shot 48 cattle and 8 horses belonging to Manuelito. Navajo warriors killed a servant of the commanding officer in retaliation for the killing of their people's livestock without compensation. The United States military demanded the murderer be brought to them, or they would begin a war. The Miles Campaign was sent against them, leaving Fort Defiance on September 9.
Answer this: How many years after Col Sumner began the campaign against the Navajo was the treaty was signed at Laguna Negra?

A: 4


P: The number of ADF personnel has changed over the last 20 years. During the 1990s the strength of the ADF was reduced from around 70,000 to 50,000 permanent personnel as a result of budget cuts and the outsourcing of some military functions. The ADF began to grow from 2000 after the defence white paper released that year called for an expansion to the militarys strength, though the size of the military decreased between the 2003–04 to 2005–06 financial years due to problems with attracting further recruits. By 2009–10 the ADF was above its budgeted size, leading to reductions until 2014–15. The size of the ADF grew between the 2014–15 and 2016–17 financial years. The ADF has not met its recruitment targets over the period since the 1995–96 financial year.
Answer this: How many years did it take the ADF to grow between 2014-15 years?

A: 1


P: The following year, the feud between the nobility and plundering by robber knights continued. In 1385, the castle of Ricklingen, where the Mandelslohs resided, was besieged. When a catapult threw a heavy rock at the troops of Duke Albert, he was hit, and died on 28 June 1385. In the wake of his death, Elector Wenceslas appointed Bernard, his brother-in-law, as co-regent involved him in the government. But his younger brother Henry did not agree with this ruling, and after vain attempts to reach an agreement, the fight flared up again in the spring of 1388. Elector Wenceslas had to assemble an army without the help of Bernard, supported by the town of Lüneburg. From Winsen an der Aller, he wanted to attack Celle, which was held by Henry and his mother. During the preparations, however, Elector Wenceslas fell seriously ill and died shortly thereafter. According to legend, he was poisoned. Lüneburg continued the preparations, formed an alliance with the Bishop of Minden and Count of Schaumburg and set up his own army. On 28 May 1388, battle was joined at Winsen an der Aller; it ended in victory for Henry. According to the provisions of the Treaty of Hanover from the year 1373, after the death of Wensceslas, the Principality passed to the House of Welf. In 1389, a inheritance agreement between the Welfs and the Ascanians was concluded, the treaty of 1374 was abolished, and the Principality was finally secured for the Welfs.
Answer this: How did the Welfs inherit the Principality?

A:
after the death of Wensceslas