KABUL- In a show of unity between the civilian and military leadership in Afghanistan, Gen. David Petraeus arrived in Kabul flanked by two senior civilian officials early Friday night.

American Ambassador Karl Eikenberry and NATO Senior Civilian Representative Mark Sedwill accompanied Gen. Petraeus from Brussels.

U.S. officials hope their joint arrival sends a powerful signal that America’s military and civilian team is unified and the turmoil and dysfunction that marked Gen. Stanley McChrystal’s command is over.

Petraeus is replacing Gen. McChrystal, who was fired by President Obama last week, after the four star general and his staff were quoted by Rolling Stone magazine making disparaging remarks about the key Obama administration officials. The animosity between Gen McChrystal and the civilian leaders stems from disagreements about the America’s military strategy in Afghanistan.

After Gen McChrystal’s firing, some Republicans on Capitol Hill have called for President Obama to make changes to the civilian side of the war effort as well. Both Sens. John McCain and Joe Lieberman pushed for former U.S. Ambassador to Iraq, and Petraeus confidant, Ryan Crocker to come out of retirement to lead the America’s civilian effort in Afghanistan.

During his confirmation hearings, however, Gen Petraeus, said no further changes needed to be made and that he is confident in the civilian team currently in place.

Despite the public assurance of unity, there is a massive divide between Gen. Petraeus and America’s civilian leaders.

Gen. Petraeus, who wrote the book on fighting a counterinsurgency, told Congress during his confirmation hearings that he would not make any significant changes to the overall strategy installed by Gen McChrystal in Afghanistan.

But in leaked private cables sent to President Obama last fall, Ambassador Eikenberry cast doubt on the effectiveness on the very strategy that Petraeus just reaffirmed his support for. As the war enters another violent and deadly summer, the strategy disagreements between the military and civilian leadership are only likely to intensify – and won’t easily be hidden by public shows of unity.